diff --git a/dvc/command/repro.py b/dvc/command/repro.py
--- a/dvc/command/repro.py
+++ b/dvc/command/repro.py
@@ -63,6 +63,7 @@ def _repro_kwargs(self):
             "recursive": self.args.recursive,
             "force_downstream": self.args.force_downstream,
             "pull": self.args.pull,
+            "glob": self.args.glob,
         }
 
 
@@ -175,6 +176,12 @@ def add_arguments(repro_parser):
             "from the run-cache."
         ),
     )
+    repro_parser.add_argument(
+        "--glob",
+        action="store_true",
+        default=False,
+        help="Allows targets containing shell-style wildcards.",
+    )
 
 
 def add_parser(subparsers, parent_parser):
diff --git a/dvc/repo/__init__.py b/dvc/repo/__init__.py
--- a/dvc/repo/__init__.py
+++ b/dvc/repo/__init__.py
@@ -1,14 +1,14 @@
 import logging
 import os
-from contextlib import contextmanager
+from contextlib import contextmanager, suppress
 from functools import wraps
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, List
 
 from funcy import cached_property, cat
 from git import InvalidGitRepositoryError
 
 from dvc.config import Config
-from dvc.dvcfile import PIPELINE_FILE, Dvcfile, is_valid_filename
+from dvc.dvcfile import PIPELINE_FILE, is_valid_filename
 from dvc.exceptions import FileMissingError
 from dvc.exceptions import IsADirectoryError as DvcIsADirectoryError
 from dvc.exceptions import (
@@ -17,6 +17,7 @@
     OutputNotFoundError,
 )
 from dvc.path_info import PathInfo
+from dvc.repo.stage import StageLoad
 from dvc.scm import Base
 from dvc.scm.base import SCMError
 from dvc.tree.repo import RepoTree
@@ -28,6 +29,9 @@
 from .trie import build_outs_trie
 
 if TYPE_CHECKING:
+    from networkx import DiGraph
+
+    from dvc.stage import Stage
     from dvc.tree.base import BaseTree
 
 
@@ -165,6 +169,7 @@ def __init__(
 
         self.cache = Cache(self)
         self.cloud = DataCloud(self)
+        self.stage = StageLoad(self)
 
         if scm or not self.dvc_dir:
             self.lock = LockNoop()
@@ -270,25 +275,6 @@ def _ignore(self):
 
         self.scm.ignore_list(flist)
 
-    def get_stage(self, path=None, name=None):
-        if not path:
-            path = PIPELINE_FILE
-            logger.debug("Assuming '%s' to be a stage inside '%s'", name, path)
-
-        dvcfile = Dvcfile(self, path)
-        return dvcfile.stages[name]
-
-    def get_stages(self, path=None, name=None):
-        if not path:
-            path = PIPELINE_FILE
-            logger.debug("Assuming '%s' to be a stage inside '%s'", name, path)
-
-        if name:
-            return [self.get_stage(path, name)]
-
-        dvcfile = Dvcfile(self, path)
-        return list(dvcfile.stages.values())
-
     def check_modified_graph(self, new_stages):
         """Generate graph including the new stage to check for errors"""
         # Building graph might be costly for the ones with many DVC-files,
@@ -306,61 +292,58 @@ def check_modified_graph(self, new_stages):
         if not getattr(self, "_skip_graph_checks", False):
             build_graph(self.stages + new_stages)
 
-    def _collect_inside(self, path, graph):
+    @staticmethod
+    def _collect_inside(path: str, graph: "DiGraph"):
         import networkx as nx
 
         stages = nx.dfs_postorder_nodes(graph)
         return [stage for stage in stages if path_isin(stage.path, path)]
 
     def collect(
-        self, target=None, with_deps=False, recursive=False, graph=None
+        self,
+        target: str = None,
+        with_deps: bool = False,
+        recursive: bool = False,
+        graph: "DiGraph" = None,
+        accept_group: bool = False,
+        glob: bool = False,
     ):
         if not target:
             return list(graph) if graph else self.stages
 
-        if recursive and os.path.isdir(target):
+        if recursive and self.tree.isdir(target):
             return self._collect_inside(
                 os.path.abspath(target), graph or self.graph
             )
 
-        path, name = parse_target(target)
-        stages = self.get_stages(path, name)
+        stages = self.stage.from_target(
+            target, accept_group=accept_group, glob=glob
+        )
         if not with_deps:
             return stages
 
+        return self._collect_stages_with_deps(stages, graph=graph)
+
+    def _collect_stages_with_deps(
+        self, stages: List["Stage"], graph: "DiGraph" = None
+    ):
         res = set()
         for stage in stages:
             res.update(self._collect_pipeline(stage, graph=graph))
         return res
 
-    def _collect_pipeline(self, stage, graph=None):
+    def _collect_pipeline(self, stage: "Stage", graph: "DiGraph" = None):
         import networkx as nx
 
         pipeline = get_pipeline(get_pipelines(graph or self.graph), stage)
         return nx.dfs_postorder_nodes(pipeline, stage)
 
-    def _collect_from_default_dvcfile(self, target):
-        dvcfile = Dvcfile(self, PIPELINE_FILE)
-        if dvcfile.exists():
-            return dvcfile.stages.get(target)
-
-    def collect_granular(
-        self, target=None, with_deps=False, recursive=False, graph=None
+    def _collect_specific_target(
+        self, target: str, with_deps: bool, recursive: bool, accept_group: bool
     ):
-        """
-        Priority is in the order of following in case of ambiguity:
-            - .dvc file or .yaml file
-            - dir if recursive and directory exists
-            - stage_name
-            - output file
-        """
-        if not target:
-            return [(stage, None) for stage in self.stages]
-
+        # Optimization: do not collect the graph for a specific target
         file, name = parse_target(target)
         stages = []
-
-        # Optimization: do not collect the graph for a specific target
         if not file:
             # parsing is ambiguous when it does not have a colon
             # or if it's not a dvcfile, as it can be a stage name
@@ -368,17 +351,46 @@ def collect_granular(
             logger.debug(
                 "Checking if stage '%s' is in '%s'", target, PIPELINE_FILE
             )
-            if not (recursive and os.path.isdir(target)):
-                stage = self._collect_from_default_dvcfile(target)
-                if stage:
-                    stages = (
-                        self._collect_pipeline(stage) if with_deps else [stage]
+            if not (
+                recursive and self.tree.isdir(target)
+            ) and self.tree.exists(PIPELINE_FILE):
+                with suppress(StageNotFound):
+                    stages = self.stage.load_all(
+                        PIPELINE_FILE, target, accept_group=accept_group
                     )
+                    if with_deps:
+                        stages = self._collect_stages_with_deps(stages)
+
         elif not with_deps and is_valid_filename(file):
-            stages = self.get_stages(file, name)
+            stages = self.stage.load_all(
+                file, name, accept_group=accept_group,
+            )
+
+        return stages, file, name
+
+    def collect_granular(
+        self,
+        target: str = None,
+        with_deps: bool = False,
+        recursive: bool = False,
+        graph: "DiGraph" = None,
+        accept_group: bool = False,
+    ):
+        """
+        Priority is in the order of following in case of ambiguity:
+            - .dvc file or .yaml file
+            - dir if recursive and directory exists
+            - stage_name
+            - output file
+        """
+        if not target:
+            return [(stage, None) for stage in self.stages]
 
+        stages, file, _ = self._collect_specific_target(
+            target, with_deps, recursive, accept_group
+        )
         if not stages:
-            if not (recursive and os.path.isdir(target)):
+            if not (recursive and self.tree.isdir(target)):
                 try:
                     (out,) = self.find_outs_by_path(target, strict=False)
                     filter_info = PathInfo(os.path.abspath(target))
@@ -387,7 +399,13 @@ def collect_granular(
                     pass
 
             try:
-                stages = self.collect(target, with_deps, recursive, graph)
+                stages = self.collect(
+                    target,
+                    with_deps,
+                    recursive,
+                    graph,
+                    accept_group=accept_group,
+                )
             except StageFileDoesNotExistError as exc:
                 # collect() might try to use `target` as a stage name
                 # and throw error that dvc.yaml does not exist, whereas it
@@ -498,7 +516,9 @@ def _collect_stages(self):
 
         for root, dirs, files in self.tree.walk(self.root_dir):
             for file_name in filter(is_valid_filename, files):
-                new_stages = self.get_stages(os.path.join(root, file_name))
+                new_stages = self.stage.load_file(
+                    os.path.join(root, file_name)
+                )
                 stages.extend(new_stages)
                 outs.update(
                     out.fspath
diff --git a/dvc/repo/freeze.py b/dvc/repo/freeze.py
--- a/dvc/repo/freeze.py
+++ b/dvc/repo/freeze.py
@@ -1,12 +1,14 @@
+import typing
+
 from . import locked
 
+if typing.TYPE_CHECKING:
+    from . import Repo
 
-@locked
-def _set(repo, target, frozen):
-    from dvc.utils import parse_target
 
-    path, name = parse_target(target)
-    stage = repo.get_stage(path, name)
+@locked
+def _set(repo: "Repo", target, frozen):
+    stage = repo.stage.get_target(target)
     stage.frozen = frozen
     stage.dvcfile.dump(stage, update_lock=False)
 
diff --git a/dvc/repo/remove.py b/dvc/repo/remove.py
--- a/dvc/repo/remove.py
+++ b/dvc/repo/remove.py
@@ -1,15 +1,17 @@
 import logging
+import typing
 
-from ..utils import parse_target
 from . import locked
 
+if typing.TYPE_CHECKING:
+    from dvc.repo import Repo
+
 logger = logging.getLogger(__name__)
 
 
 @locked
-def remove(self, target, outs=False):
-    path, name = parse_target(target)
-    stages = self.get_stages(path, name)
+def remove(self: "Repo", target: str, outs: bool = False):
+    stages = self.stage.from_target(target)
 
     for stage in stages:
         stage.remove(remove_outs=outs, force=outs)
diff --git a/dvc/repo/reproduce.py b/dvc/repo/reproduce.py
--- a/dvc/repo/reproduce.py
+++ b/dvc/repo/reproduce.py
@@ -1,4 +1,5 @@
 import logging
+import typing
 from functools import partial
 
 from dvc.exceptions import InvalidArgumentError, ReproductionError
@@ -8,6 +9,9 @@
 from . import locked
 from .graph import get_pipeline, get_pipelines
 
+if typing.TYPE_CHECKING:
+    from . import Repo
+
 logger = logging.getLogger(__name__)
 
 
@@ -75,15 +79,15 @@ def _get_active_graph(G):
 @locked
 @scm_context
 def reproduce(
-    self,
+    self: "Repo",
     target=None,
     recursive=False,
     pipeline=False,
     all_pipelines=False,
     **kwargs,
 ):
-    from dvc.utils import parse_target
-
+    glob = kwargs.pop("glob", False)
+    accept_group = not glob
     assert target is None or isinstance(target, str)
     if not target and not all_pipelines:
         raise InvalidArgumentError(
@@ -97,12 +101,11 @@ def reproduce(
     active_graph = _get_active_graph(self.graph)
     active_pipelines = get_pipelines(active_graph)
 
-    path, name = parse_target(target)
     if pipeline or all_pipelines:
         if all_pipelines:
             pipelines = active_pipelines
         else:
-            stage = self.get_stage(path, name)
+            stage = self.stage.get_target(target)
             pipelines = [get_pipeline(active_pipelines, stage)]
 
         targets = []
@@ -111,7 +114,13 @@ def reproduce(
                 if pipeline.in_degree(stage) == 0:
                     targets.append(stage)
     else:
-        targets = self.collect(target, recursive=recursive, graph=active_graph)
+        targets = self.collect(
+            target,
+            recursive=recursive,
+            graph=active_graph,
+            accept_group=accept_group,
+            glob=glob,
+        )
 
     return _reproduce_stages(active_graph, targets, **kwargs)
 
diff --git a/dvc/repo/stage.py b/dvc/repo/stage.py
new file mode 100644
--- /dev/null
+++ b/dvc/repo/stage.py
@@ -0,0 +1,130 @@
+import fnmatch
+import logging
+import typing
+from typing import Iterable, List
+
+from dvc.dvcfile import PIPELINE_FILE, Dvcfile
+from dvc.utils import parse_target
+
+logger = logging.getLogger(__name__)
+
+if typing.TYPE_CHECKING:
+    from dvc.repo import Repo
+    from dvc.stage import Stage
+    from dvc.stage.loader import StageLoader
+
+
+class StageLoad:
+    def __init__(self, repo: "Repo") -> None:
+        self.repo = repo
+
+    def from_target(
+        self, target: str, accept_group: bool = False, glob: bool = False,
+    ) -> List["Stage"]:
+        """
+        Returns a list of stage from the provided target.
+        (see load method below for further details)
+        """
+        path, name = parse_target(target, isa_glob=glob)
+        return self.load_all(
+            path=path, name=name, accept_group=accept_group, glob=glob,
+        )
+
+    def get_target(self, target: str) -> "Stage":
+        """
+        Returns a stage from the provided target.
+        (see load_one method for further details)
+        """
+        path, name = parse_target(target)
+        return self.load_one(path=path, name=name)
+
+    @staticmethod
+    def _get_filepath(path: str = None, name: str = None) -> str:
+        if path:
+            return path
+
+        path = PIPELINE_FILE
+        logger.debug("Assuming '%s' to be a stage inside '%s'", name, path)
+        return path
+
+    @staticmethod
+    def _get_group_keys(stages: "StageLoader", group: str) -> Iterable[str]:
+        from dvc.parsing import JOIN
+
+        for key in stages:
+            assert isinstance(key, str)
+            if key.startswith(f"{group}{JOIN}"):
+                yield key
+
+    def _get_keys(
+        self,
+        stages: "StageLoader",
+        name: str = None,
+        accept_group: bool = False,
+        glob: bool = False,
+    ) -> Iterable[str]:
+
+        assert not (accept_group and glob)
+
+        if not name:
+            return stages.keys()
+
+        if accept_group and stages.is_foreach_generated(name):
+            return self._get_group_keys(stages, name)
+        elif glob:
+            return fnmatch.filter(stages.keys(), name)
+        return [name]
+
+    def load_all(
+        self,
+        path: str = None,
+        name: str = None,
+        accept_group: bool = False,
+        glob: bool = False,
+    ) -> List["Stage"]:
+        """Load a list of stages from a file.
+
+        Args:
+            path: if not provided, default `dvc.yaml` is assumed.
+            name: required for `dvc.yaml` files, ignored for `.dvc` files.
+            accept_group: if true, all of the the stages generated from `name`
+                foreach are returned.
+            glob: if true, `name` is considered as a glob, which is
+                used to filter list of stages from the given `path`.
+        """
+        from dvc.stage.loader import SingleStageLoader, StageLoader
+
+        path = self._get_filepath(path, name)
+        dvcfile = Dvcfile(self.repo, path)
+        # `dvcfile.stages` is not cached
+        stages = dvcfile.stages  # type: ignore
+
+        if isinstance(stages, SingleStageLoader):
+            stage = stages[name]
+            return [stage]
+
+        assert isinstance(stages, StageLoader)
+        keys = self._get_keys(stages, name, accept_group, glob)
+        return [stages[key] for key in keys]
+
+    def load_one(self, path: str = None, name: str = None) -> "Stage":
+        """Load a single stage from a file.
+
+        Args:
+            path: if not provided, default `dvc.yaml` is assumed.
+            name: required for `dvc.yaml` files, ignored for `.dvc` files.
+        """
+        path = self._get_filepath(path, name)
+        dvcfile = Dvcfile(self.repo, path)
+
+        stages = dvcfile.stages  # type: ignore
+
+        return stages[name]
+
+    def load_file(self, path: str = None) -> List["Stage"]:
+        """Load all of the stages from a file."""
+        return self.load_all(path)
+
+    def load_glob(self, path: str, expr: str = None):
+        """Load stages from `path`, filtered with `expr` provided."""
+        return self.load_all(path, expr, glob=True)
diff --git a/dvc/stage/loader.py b/dvc/stage/loader.py
--- a/dvc/stage/loader.py
+++ b/dvc/stage/loader.py
@@ -7,7 +7,7 @@
 
 from dvc import dependency, output
 from dvc.hash_info import HashInfo
-from dvc.parsing import JOIN, DataResolver
+from dvc.parsing import FOREACH_KWD, JOIN, DataResolver
 from dvc.path_info import PathInfo
 
 from . import PipelineStage, Stage, loads_from
@@ -133,6 +133,11 @@ def __len__(self):
     def __contains__(self, name):
         return name in self.resolved_data
 
+    def is_foreach_generated(self, name: str):
+        return (
+            name in self.stages_data and FOREACH_KWD in self.stages_data[name]
+        )
+
 
 class SingleStageLoader(Mapping):
     def __init__(self, dvcfile, stage_data, stage_text=None):
diff --git a/dvc/utils/__init__.py b/dvc/utils/__init__.py
--- a/dvc/utils/__init__.py
+++ b/dvc/utils/__init__.py
@@ -9,6 +9,7 @@
 import stat
 import sys
 import time
+from typing import Optional, Tuple
 
 import colorama
 import nanotime
@@ -409,7 +410,9 @@ def error_link(name):
     return format_link(f"https://error.dvc.org/{name}")
 
 
-def parse_target(target: str, default: str = None):
+def parse_target(
+    target: str, default: str = None, isa_glob: bool = False
+) -> Tuple[Optional[str], Optional[str]]:
     from dvc.dvcfile import PIPELINE_FILE, PIPELINE_LOCK, is_valid_filename
     from dvc.exceptions import DvcException
     from dvc.parsing import JOIN
@@ -417,9 +420,14 @@ def parse_target(target: str, default: str = None):
     if not target:
         return None, None
 
+    default = default or PIPELINE_FILE
+    if isa_glob:
+        path, _, glob = target.rpartition(":")
+        return path or default, glob or None
+
     # look for first "@", so as not to assume too much about stage name
     # eg: it might contain ":" in a generated stages from dict which might
-    # affect further parsings with the regex.
+    # affect further parsing with the regex.
     group, _, key = target.partition(JOIN)
     match = TARGET_REGEX.match(group)
 
@@ -446,10 +454,9 @@ def parse_target(target: str, default: str = None):
             return ret if is_valid_filename(target) else ret[::-1]
 
     if not path:
-        path = default or PIPELINE_FILE
-        logger.debug("Assuming file to be '%s'", path)
+        logger.debug("Assuming file to be '%s'", default)
 
-    return path, name
+    return path or default, name
 
 
 def is_exec(mode):

Hi, @johnnychen94. Glad to see an issue for the parameterization (and, seeing someone using it :smile:). I am working on this feature and will be implemented around the pre-release (which might be backwards-incompatible).
diff --git a/tests/func/test_dvcfile.py b/tests/func/test_dvcfile.py
--- a/tests/func/test_dvcfile.py
+++ b/tests/func/test_dvcfile.py
@@ -355,7 +355,7 @@ def test_dvcfile_dump_preserves_comments(tmp_dir, dvc):
             - foo"""
     )
     tmp_dir.gen("dvc.yaml", text)
-    stage = dvc.get_stage(name="generate-foo")
+    stage = dvc.stage.load_one(name="generate-foo")
     stage.outs[0].use_cache = False
     dvcfile = stage.dvcfile
 
@@ -377,7 +377,7 @@ def test_dvcfile_try_dumping_parametrized_stage(tmp_dir, dvc, data, name):
     dump_yaml("dvc.yaml", {"stages": data, "vars": [{"foo": "foobar"}]})
     dvc.config["feature"]["parametrization"] = True
 
-    stage = dvc.get_stage(name=name)
+    stage = dvc.stage.load_one(name=name)
     dvcfile = stage.dvcfile
 
     with pytest.raises(ParametrizedDumpError) as exc:
diff --git a/tests/func/test_repo.py b/tests/func/test_repo.py
--- a/tests/func/test_repo.py
+++ b/tests/func/test_repo.py
@@ -16,6 +16,7 @@
 from dvc.system import System
 from dvc.utils import relpath
 from dvc.utils.fs import remove
+from dvc.utils.serialize import dump_yaml
 
 
 def test_destroy(tmp_dir, dvc, run_copy):
@@ -160,7 +161,73 @@ def stages(tmp_dir, run_copy):
         "lorem-generate": stage2,
         "copy-foo-bar": run_copy("foo", "bar", single_stage=True),
         "copy-bar-foobar": run_copy("bar", "foobar", name="copy-bar-foobar"),
-        "copy-lorem-ipsum": run_copy("lorem", "ipsum", name="lorem-ipsum"),
+        "copy-lorem-ipsum": run_copy(
+            "lorem", "ipsum", name="copy-lorem-ipsum"
+        ),
+    }
+
+
+def test_collect_not_a_group_stage_with_group_flag(tmp_dir, dvc, stages):
+    assert set(dvc.collect("copy-bar-foobar", accept_group=True)) == {
+        stages["copy-bar-foobar"]
+    }
+    assert set(
+        dvc.collect("copy-bar-foobar", accept_group=True, with_deps=True)
+    ) == {
+        stages["copy-bar-foobar"],
+        stages["copy-foo-bar"],
+        stages["foo-generate"],
+    }
+    assert set(dvc.collect_granular("copy-bar-foobar", accept_group=True)) == {
+        (stages["copy-bar-foobar"], None),
+    }
+    assert set(
+        dvc.collect_granular(
+            "copy-bar-foobar", accept_group=True, with_deps=True
+        )
+    ) == {
+        (stages["copy-bar-foobar"], None),
+        (stages["copy-foo-bar"], None),
+        (stages["foo-generate"], None),
+    }
+
+
+def test_collect_generated(tmp_dir, dvc):
+    dvc.config["feature"]["parametrization"] = True
+    d = {
+        "vars": [{"vars": [1, 2, 3, 4, 5]}],
+        "stages": {
+            "build": {"foreach": "${vars}", "do": {"cmd": "echo ${item}"}}
+        },
+    }
+    dump_yaml("dvc.yaml", d)
+
+    all_stages = set(dvc.stages)
+    assert len(all_stages) == 5
+
+    assert set(dvc.collect()) == all_stages
+    assert set(dvc.collect("build", accept_group=True)) == all_stages
+    assert (
+        set(dvc.collect("build", accept_group=True, with_deps=True))
+        == all_stages
+    )
+    assert set(dvc.collect("build*", glob=True)) == all_stages
+    assert set(dvc.collect("build*", glob=True, with_deps=True)) == all_stages
+
+    stages_info = {(stage, None) for stage in all_stages}
+    assert set(dvc.collect_granular("build", accept_group=True)) == stages_info
+    assert (
+        set(dvc.collect_granular("build", accept_group=True, with_deps=True))
+        == stages_info
+    )
+
+
+def test_collect_glob(tmp_dir, dvc, stages):
+    assert set(dvc.collect("copy*", glob=True)) == {
+        stages[key] for key in ["copy-bar-foobar", "copy-lorem-ipsum"]
+    }
+    assert set(dvc.collect("copy-lorem*", glob=True, with_deps=True)) == {
+        stages[key] for key in ["copy-lorem-ipsum", "lorem-generate"]
     }
 
 
@@ -307,33 +374,33 @@ def test_collect_granular_not_existing_stage_name(tmp_dir, dvc, run_copy):
 
 def test_get_stages(tmp_dir, dvc, run_copy):
     with pytest.raises(StageFileDoesNotExistError):
-        dvc.get_stages()
+        dvc.stage.load_all()
 
     tmp_dir.gen("foo", "foo")
     stage1 = run_copy("foo", "bar", name="copy-foo-bar")
     stage2 = run_copy("bar", "foobar", name="copy-bar-foobar")
 
-    assert set(dvc.get_stages()) == {stage1, stage2}
-    assert set(dvc.get_stages(path=PIPELINE_FILE)) == {stage1, stage2}
-    assert set(dvc.get_stages(name="copy-bar-foobar")) == {stage2}
-    assert set(dvc.get_stages(path=PIPELINE_FILE, name="copy-bar-foobar")) == {
-        stage2
-    }
+    assert set(dvc.stage.load_all()) == {stage1, stage2}
+    assert set(dvc.stage.load_all(path=PIPELINE_FILE)) == {stage1, stage2}
+    assert set(dvc.stage.load_all(name="copy-bar-foobar")) == {stage2}
+    assert set(
+        dvc.stage.load_all(path=PIPELINE_FILE, name="copy-bar-foobar")
+    ) == {stage2}
 
     with pytest.raises(StageFileDoesNotExistError):
-        dvc.get_stages(path=relpath(tmp_dir / ".." / PIPELINE_FILE))
+        dvc.stage.load_all(path=relpath(tmp_dir / ".." / PIPELINE_FILE))
 
     with pytest.raises(StageNotFound):
-        dvc.get_stages(path=PIPELINE_FILE, name="copy")
+        dvc.stage.load_all(path=PIPELINE_FILE, name="copy")
 
 
 def test_get_stages_old_dvcfile(tmp_dir, dvc):
     (stage1,) = tmp_dir.dvc_gen("foo", "foo")
-    assert set(dvc.get_stages("foo.dvc")) == {stage1}
-    assert set(dvc.get_stages("foo.dvc", name="foo-generate")) == {stage1}
+    assert set(dvc.stage.load_all("foo.dvc")) == {stage1}
+    assert set(dvc.stage.load_all("foo.dvc", name="foo-generate")) == {stage1}
 
     with pytest.raises(StageFileDoesNotExistError):
-        dvc.get_stages(path=relpath(tmp_dir / ".." / "foo.dvc"))
+        dvc.stage.load_all(path=relpath(tmp_dir / ".." / "foo.dvc"))
 
 
 def test_get_stage(tmp_dir, dvc, run_copy):
@@ -341,24 +408,26 @@ def test_get_stage(tmp_dir, dvc, run_copy):
     stage1 = run_copy("foo", "bar", name="copy-foo-bar")
 
     with pytest.raises(StageNameUnspecified):
-        dvc.get_stage()
+        dvc.stage.load_one()
 
     with pytest.raises(StageNameUnspecified):
-        dvc.get_stage(path=PIPELINE_FILE)
+        dvc.stage.load_one(path=PIPELINE_FILE)
 
-    assert dvc.get_stage(path=PIPELINE_FILE, name="copy-foo-bar") == stage1
-    assert dvc.get_stage(name="copy-foo-bar") == stage1
+    assert (
+        dvc.stage.load_one(path=PIPELINE_FILE, name="copy-foo-bar") == stage1
+    )
+    assert dvc.stage.load_one(name="copy-foo-bar") == stage1
 
     with pytest.raises(StageFileDoesNotExistError):
-        dvc.get_stage(path="something.yaml", name="name")
+        dvc.stage.load_one(path="something.yaml", name="name")
 
     with pytest.raises(StageNotFound):
-        dvc.get_stage(name="random_name")
+        dvc.stage.load_one(name="random_name")
 
 
 def test_get_stage_single_stage_dvcfile(tmp_dir, dvc):
     (stage1,) = tmp_dir.dvc_gen("foo", "foo")
-    assert dvc.get_stage("foo.dvc") == stage1
-    assert dvc.get_stage("foo.dvc", name="jpt") == stage1
+    assert dvc.stage.load_one("foo.dvc") == stage1
+    assert dvc.stage.load_one("foo.dvc", name="jpt") == stage1
     with pytest.raises(StageFileDoesNotExistError):
-        dvc.get_stage(path="bar.dvc", name="name")
+        dvc.stage.load_one(path="bar.dvc", name="name")
diff --git a/tests/unit/command/test_repro.py b/tests/unit/command/test_repro.py
--- a/tests/unit/command/test_repro.py
+++ b/tests/unit/command/test_repro.py
@@ -15,6 +15,7 @@
     "recursive": False,
     "force_downstream": False,
     "pull": False,
+    "glob": False,
 }
 
 

make dvc repro STAGE running all parametrized stages
```yaml
stages:
  build:
    foreach:
      - 15
      - 25
      - 35
    do:
      cmd: echo ${item}
```

```console
jc@mathai3:~/Downloads/dvc_test$ dvc repro build@15
Running callback stage 'build@15' with command:
	echo 15
15
Use `dvc push` to send your updates to remote storage.
```

The following version doesn't work, even though `build` is defined in `stages` section.

```console
jc@mathai3:~/Downloads/dvc_test$ dvc repro build
ERROR: "Stage 'build' not found inside 'dvc.yaml' file"
```

I wish we could make it equivalent to

```console
for item in 15 25 35; do
    dvc repro build@$item
done
```

Furthermore, depends on whether there's a lock, multiple stages can be run in parallel.


tests/unit/command/test_repro.py::test_default_arguments tests/unit/command/test_repro.py::test_downstream
tests/func/test_dvcfile.py::test_run_load_one_for_multistage_non_existing tests/func/test_repo.py::test_collect_with_not_existing_dvcfile[not_existing/dvc.yaml:stage_name] tests/func/test_repo.py::test_collect_with_not_existing_dvcfile[not_existing.dvc] tests/func/test_repo.py::test_collect_with_not_existing_dvcfile[not_existing.dvc:stage_name] tests/func/test_repo.py::test_collect_with_not_existing_dvcfile[not_existing/dvc.yaml]