Project Hail Mary was fantastic. I also really enjoyed The Bobiverse series (We are Legion, We are Bob). Very fun and relaxing read. The Expanse is probably my favorite space book series. Dune is also of course a classic, love Frank Herbert.
On the other end for fantasy, I love Brandon Sanderson’s Cosmere novels. Stormlight Archives has to be my favorite.
Currently reading the Wheel of Time, about 5 books in right now. Its great.
Interesting this thread is like 1 year old, and all the comments are within the last 8 hours. May as well contribute too.