For something a little shorter and easier to chew through quickly you could check out Odd and the Frost Giants by Neil Gaiman. A short story set in Norse mythology, I remember it being an entertaining read
Books
Book reader community.
If you're into the sci-fi, you'll probably like Project Hail Mary, it's hard sci-fi and you get very invested in the story.
Ray Porter also does a great audiobook narration of it on audible.
This year I discovered the Elderling Saga, by Robin Hobb. Starts with the Farseer Trilogy, Assassin's Apprentice. Great epic fantasy.
As for sci-fi Isaac Asimov's Foundation is great.
Neuromancer is also a great read, and one of the earliest examples of cyberpunk.
Since you asked for a single book, and you might not be keen on jumping into multi-book sagas, I'd say go for Neuromancer
The style of Neuromancer might not fit well with some people but if it does I would absolutely recommend it.
The Murderbot Diaries series by Martha Wells is a collection of short books in the first perspective of a cyborg. You might enjoy that.