I just got early Xmas gifted a Switch 2. This screen is way doper than I was expecting.
Downloading Mario Kart.
What else do I need to do?
Fast Fusion and Bonanza???
OP, this heavily depends if you have Switch 1.
First or, get dbrand or jsaux type case/grip. Switch vanilla is pretty uncomfortable. And get a MicroSD Express card. 256GB is probably ok to start as they are pretty pricey.
Then look up games that got graphics upgrades and that you already either have or can buy on sale. And don't have on other platforms.
Mario Odyssey, couple other Mario games, Kirby, Zelda games, Pokémon Scarlet, etc…. DQ3 is supposed to have a great S2 mode and so does Romancing Saga 2 Remake.
Then you got Western games like Cyberpunk, Hogwarts, Outlaws, and even Skyrim (with caveats on this) and Witcher that run better on the system or are actual decent ports.
it really all depends on the genre you like, what other systems you have and if you have Switch 1.
Also, Nintendo games absolutely go on sale, it's just more rare. You can get Odyssey for like $40 as an example.
Check out eShop for some good deals as well.