Pokemon Sapphire/Emerald/Ruby/Leaf Green/Fire Red were my goto especially for grinding. From sound and memorization along you can play pokemon without looking… Or at least I could.

Zelda Oracle of Ages is another game which I found calming. Its more puzzle than combat, but there is still combat. Not goof got meeting but good for afterwards.

The GBC Harry Potter games or Prisoner of Azkaban are fun RPGs that I played before Pokemon. A fun time too, and can almost be played under a desk (don’t ask how I know)

Pokemon Mystery Dungeon, rogue like endless(ish) dungeon crawler. Amazing story, but the post game is just a grind perfect for fiddling as you are just doing the same thing for 99 levels… Until you find the boss. Better on DS with Blue rescue team, but red on GBA is a good choice.

Outside of mega man battle network, the rest of my games are platformers which don’t fit the bill