Super Mario 3D Land is a good place to start!

wario ware gold simple but adictive

mario and luigi paper jam bros

Mario & Luigi: Dream Team Bros.

if you're able to get your hands on it i recommend moco moco friends, it's a simple but super charming monster collecting rpg!

Try Raddids Travel in Time! I loved it.

Persona q2 Radiant historia Severed Creeping Terror