Persona 5, I'm playing that right now and I wish I could take that on the road with me lol.

-mario sports superstar(tenis, soccer, golf, etc in a single package)
-KH 1.5+2.5 remix
-a 4 player multiplayer 3D mario plataformer, like 3d world.
-A good 4 player party game like wii party u
-DKC and rayman sequences
-another adorable yarn/wool 2d plataformer game
-as many plataformers they can make, foremost with multiplayer options
-a new top view zelda.
-gta
-tomb raider(why not 2013 and rise of in a single package?)
-hat in time
-monster hunter, pokemon
-hyrule warriors, with new characters(and lots of new weapons) and story branch from BotW.

I would play The Witness again if it came out on Switch.

I've also been looking to get my hands on The Talos Principle and Obduction, so if those were available on Switch, I'd love not having to sit in front of my PC every time I felt like doing some brain teasers.

I really hope that rumour about Dark Souls games coming to Switch is real. :)

Fortune Street (with level editor and online level sharing)
Super Mario Maker 2

Whenever someone makes a thread asking what games you want on a Nintendo system, I will always be there begging for a new Punch Out!!

But other than that, a new Donkey Kong Returns style game, a Warioware game with actual microgames instead of a few minigames (Game and Wario sucked hard, IMHO), new Metroid and Kid Icarus games, maybe a new F-Zero, Ace Attorney games from Capcom, Professor Layton games from Level-5, and keep the RPG train going.

More spin offs! Hyrule Warriors and TMS#FE were very FUN!!!!! And Speaking of TMS#FE...... I want a sequel or the same gameplay!

More of those simulation games!!! Like Sims and Simcity! I do expect Animal Crossing to be on it so that is great.

I'm adding Scanner Sombre to my wishlist.

We could do with more quirky indie titles that aren't just pixel platformers.

https://www.youtube.com/watch?v=NmxE4VRwk0k

That completed but unreleased Rogue Squadron game for the Wii. Just give it an up-res to 1080p and map the motion controls to the joy-cons and I won't care that it's essentially gamecube-level graphics. I just really want that game.

Megaman X and Golden Sun.

Did I already say Megaman X?