Oh niccce.. I should be expected roughly a grand from my tax returns shortly myself, and I'm pretty sure at least half of that will going towards Switch games/accessories lol.
That's a pretty good list - covers most of the significant releases this year. You'll almost definitely love BotW. 50 hours in and still enjoying the hell out of it, and have a ton to still explore and accomplish. Fast RMX is a pretty solid racing game, nothing revolutionary but good enough in short bursts when you want a break from Zelda.. It's a good game to pick up for a quick few minutes and jump right into an online match. Most of the other games that look good are on the indie front. Not sure what your gaming tastes are, but outside those titles, I'll be getting, or at least strongly considering -
Binding of Isaac: Afterbirth (first batch of physical copies come with a cool original Zelda-esque instruction booklet, so not only looks like a fun game but makes for a cool collectors item)
Has Been Heroes
Dragon Quest X/XI
Skyrim
Graceful Explosion Machine
I am Setsuna
Sonic Mania
Stardew Valley (multiplayer is coming first on Switch)
Steamworld Dig 2
Toe Jam and Earl: Back in the Groove
Wargroove
Yooka Laylee (if you liked Rare's 3D platformers as I do think should be on your radar)
"We hold these truths to be self-evident - All men and women created by the, go-you know - you know the thing!" - Joe Biden
