I can really recommend Orzly’s screen protector for the Switch. It was a day one purchase for me, my brother has been running around with no screen protector on his since buying it at launch, and his screen his fine. But even with a case, and dock scratch being rare, I think he’s a maniac for not paying a mere £8 to stop a massive pain in the arse if it is scratched.
Case wise, there’s quite a few really good ones on the market. What I did was go into a game shop, take a look at them all in person to see which were the best fit for what I was after, and then just waited for one to go on sale somewhere. Ended up getting a really good one with room for 10 game cards for £12, forgot what make it was though. The official ones do have very nice designs if you’re willing to pay a bit more for them.
Currently enjoying Rayman Legends on my Switch. This has really surprised me, I’m having an amazing time with it, I haven’t enjoyed a game this much since I was a kid, I’m completely engrossed.