I just finished SteamWorld Dig 2 and I'm looking for something to play on the Switch. Some games I've been considering are...

Bayonetta - I've always heard good things about it and always tempted to try it, but the art style isn't up my alley. I've gained more interest in playing Bayonetta since she arrived in Smash. Has it aged well? Worth the $30?

Owl Boy

Gris - heard it was a beautiful game

Katana Zero

Any other recommendations? 

I currently own - Odyssey, Smash, BotW, Mario & Rabbids, Mario Kart 8, Splatoon 2, Stardew Valley, Dead Cells, Overcooked 1 & 2, Celeste, Mario Tennis, Golf Story, Octopath, & a few others.

I really liked Owl Boy. The graphics are gorgeous, some of the puzzles are pretty clever and the story has a cute, positive vibe.

Looking for time to play all the shit I bought.

cuphead :)

You played through all those you own already?

Otherwise, all the games you're considering are pretty good games. Bayonetta looks faded since the original came out during the height of the "real is brown" fad (well, gray here), so the colors are very muted. But that's just the visuals, the gameplay is very good.

No I haven't played through all games I own, but whatever I haven't beaten I'm not going to go back to for a while if at all.

Owl Boy's graphics always caught my attention. Looks like a very charming game.

I'm up to the final boss on Xbox

Final Fantasy XII!

Bayonetta is fantastic..... Id get that over the others you mentioned.