https://www.co-optimus.com/games.php?type=couch
Some co-op games ones you might enjoy are Lovers in a Dangerous Spacetime, Magicka, overcooked, hammerwatch, Trine, Rayman Legends or human fall flat.
There's also a really big back catalog of arcade or earlier console emulatable local multiplayer co-op games, many of which have gotten ports like Chronicles of Mystara or Gauntlet if you don't want to mess with emulation.