I'm going to also name games that are not Switch exclusives. I have a lot I'm about to name drop lol as I've also bought a lot of indie games on my Switch.
A Hat In Time
Super Mario Odyssey
Splatoon 3
Luigi’s Mansion 3
Kirby and the Forgotten Land
Princess Peach Showtime
Paper Mario the Origami King
Shove Knight I mean Shovel Knight
Beacon Pines (This is so good. A bit dark though)
Ooblets
Animal Crossing New Horizons
Paper Mario - 1000 Year Door remake
My Time at Sandrock
Spiritfarer (Be prepared this game is sad)
Hollow Knight
The Cosmic Wheel of Sisterhood
Coffee Talk
Graveyard Keeper
Mario + Rabbids games
Pacman World Repac (Very excited for Pacman World 2 remake coming)
New Pokemon Snap
Yoshi's Crafted World
Fae Farm
Cult of the Lamb
Hades
Cuphead
Lil Gator Game (I was not expecting the feels this one gave me)
Hello Kitty Island Adventure
Yooka-Laylee
Yooka-Laylee and the Impossible Lair
Fall of Porcupine (If You liked Night in the Woods you may like this game)
Here Comes Niko (made by the same studio that did A Hat In Time.)
Dragon Quest Monsters - The Dark Prince
Rune Factory 4
Special mention to: Little Wood, Potion Permit, Garden story, Wytchwood, Thank Goodness You're Here!(this game lol), The Cruel King and the Great Hero, Disney Dreamlight Valley, Moonstone Island, and the Cat Quest games
I know I'm forgetting some as I have a sea of indie games I bought. These are just the games I can remember off the top of my head I bought on the switch.