A few examples of the indie games announced for the console can be found below, while a longer list is available from Nintendo.
Runner3 (Choice Provisions)
SteamWorld Dig 2 (Image & Form Games)
Yooka Laylee (Team 17 and Playtronic Games)
Flipping Death (Zoink Games)
Stardew Valley (ConcernedApe)
GoNNER (Raw Fury and Art in Heart)