Mario + Rabbids battle kingdom.
Not only is it good. But the fact that it's sounded like a dumb idea made it better. Also the game is tough. Really challenging. It's tactical shooter RPG, which is crazy and one of the best looking games on the switch. Some would argue it looks better than Mario odyssey.
Indies:
Rocket league - soccer in rocket cars
Sonic Mania - its a new classic sonic, everyone loves it. If you liked sonic on the genesis, this is for you.
Kamiko - highly aesthetic retro Zelda-esq puzzle game
Shovel Knight - Fucking great 2d adventure platformer, plus you get the DLC which is basically 3 games because each character controls different, has different levels and story arcs (although there is some crossover which only helps the story) A great difficulty curve. Sort of like Megaman/Castlevania/Metroid
I like phatom breaker, which is like streets of rage with anime girls, but it's not everyone's cup of tea.