linear regulator with high current capacity
tl; dr: unless you need an ultra quiet analog supply, forget linear regulators. There’s almost no reason to use a 7805 except out of habit.
The 7805 has an overhead voltage of at least 2V, more typically 3V. That means dissipating at least 4W, more typically 6W, if it were handling 2A. That’s kind of a lot.
By the time you figure out a heatsink, mounting, cooling, packaging, etc... the costs and system footprint really begin to add up. That cheap-and-cheerful 7805, LM317, or external pass transistor doesn’t seem so cheap anymore, does it?
If your design is already using the 7805, and need to increase the current without changing your layout, consider the DCDC drop-in replacements available for it. These will be more efficient and shed less heat. Here’s a whole range of them from MPS. https://www.monolithicpower.com/en/mezd71202a-a.html
Other vendors make them as well. These will require minimal to no heatsink.
Doing a new design? 1 to 2A buck DCDC switching ICs are very inexpensive, less than 20 cents in volume. Diodes, Inc, Richtek and others have a good selection of low cost ones - this is a very competitive space for power ICs.
Space constrained? MPS makes even more compact buck solutions that integrate that inductor right into the IC package, ranging up to 6A in a 4x5mm package. I use these for M.2 cards, that’s how small they are.