To echo others, it’s hard to pick 3. I don’t think I read anything published this year but here are my top 3 read:
The Stories of Ray Bradbury. A collection of 100 ( I think?) of his best stories. He’s just so good - incredible prose, unique ideas, and very accessible. He’s just a regular guy writing about regular things (aside, of course, from the sci fi/fantasy/horror elements) and that makes his stories so much more moving and terrifying.
I just finished Cloud Cuckoo Land by Anthony Doerr and it was beautiful, moving, brilliant in its weaving of timelines and storylines and characters. I also read All the Light We Cannot See this year and really enjoyed it, as well.
Letters from a Shipwreck in the Sea of Suns and Moons by Raymond St. Elmo. Pure fantastical adventure with a beautiful romance woven throughout. It’s wild ride of gorgeous prose, unusual form, and unreliable narration. Has become an all-time favorite for me and I highly recommend it if you like that sort of thing.
Erin Morgenstern - The Starless Sea took my breath away over and over again.
Also, Ray Bradbury and John Muir.