Let's see... Limiting myself to a top five and not including any rereads:
Echo of Worlds by MR Carey, book 2 in an excellent scifi duology.
Everyone on This Train is a Suspect by Benjamin Stevenson, a tongue-in-cheek mystery, and I normally don't like mysteries.
The Dead Cat Tail Assassins by P. Djèlí Clark, a dark comedy fantasy. The audiobook is really well done. I liked it so much, I read it twice this year.
A Memory Called Empire by Arkady Martine, a space opera with excellent, compelling characters. (Don't bother with the sequel though.)
The Book that Broke the World by Mark Lawrence, book 2 in a trilogy with book 3 out in April 2025. It's a true blend of sci-fi and fantasy, set around a library.