If you don't mind it being YA stuff, I have found "the Hunger Games" series very well written and an easy read, without being trivial. The same for "Harry Potter" (surprisingly). Yeah, the latter may seem for children, at the beginning, but it becomes rather obscure after a while.
Alternative: "The Martian" or "Project Hail Mary". Very enjoyable books with a touch of humor and good science in them.
If you don't mind it being YA stuff, I have found "the Hunger Games" series very well written and an easy read, without being trivial. The same for "Harry Potter" (surprisingly). Yeah, the latter may seem for children, at the beginning, but it becomes rather obscure after a while.
Alternative: "The Martian" or "Project Hail Mary". Very enjoyable books with a touch of humor and good science in them.