Auto Adding from Google Chrome to macOS Notes
Here's my rough service workflow: 


Only texts can be added, and a new note is created. 
Apple Script: 

on run {input, parameters}

    tell application "System Events"

        tell process "Notes"

            click menu item "New Note" of menu "File" of menu bar 1
            click menu item "Paste" of menu "Edit" of menu bar 1

        end tell

     end tell
     return input
end run



Update*2:
To add pictures, simply use another Apple Script block that clicks a menu item. And add some delay for Notes app to launch. 


on run {input, parameters}

    tell application "System Events"

        tell process "Google Chrome"

            click menu item "Copy" of menu "Edit" of menu bar 1

        end tell

     end tell
     return input
end run