* Greg Egan’s short story collections, Diaspora, and Permutation City. Fair warning, Egan puts the “hard” in “hard sci-fi”.
* Haven’t finished the Expanse final trilogy, but I really enjoyed the first two.
* The Wool series
* Project Hail Mary, for story reasons I’d recommend the audio book.
* We Are Bob trilogy, fourth book is garbage.
* Old Man’s War
* The Culture Series by Ian Banks
* If you enjoyed Seveneves, and thus can tolerate Stephenson’s consistent habit to drop the ball in the last 20% of his books, Diamond Age is enjoyable.
* Haven’t finished the Expanse final trilogy, but I really enjoyed the first two.
* The Wool series
* Project Hail Mary, for story reasons I’d recommend the audio book.
* We Are Bob trilogy, fourth book is garbage.
* Old Man’s War
* The Culture Series by Ian Banks
* If you enjoyed Seveneves, and thus can tolerate Stephenson’s consistent habit to drop the ball in the last 20% of his books, Diamond Age is enjoyable.