Just Dance is fun and fantastic for some exercise as well lol.
Animal Crossing for killing time.
Smash is easily one of the better fighting games out there.
If you wanna have some fun, Hades is a really neat experience! It got a good few Game of the Year awards... oh, and Doom Eternal for Switch is okay, and Witcher 3 + Bioshock Infinite if you have yet to play them!