Embassytown

Asimov's original "Foundation" - it's effectively a collection of 4,5 short stories. I recommend to remain at a discreet distance from the rest of the series. While good within the universe, they are ... different. "Ender's Game" and "Speaker for the Dead" by O.S.Card. (Do not touch Xenocide without a hazmat suit. And if you do, burn it before reading.) "Snow Crash" by Neil Stephenson. "Rendez-vouz with Rama" by Arthur C. Clarke. If you're up for some thought-provoking stuff, "Stranger in a Strange Land" by Heinlein. Not the easiest read but your carve-out basically rules out "The Moon is a Harsh Mistress". "Embassytown" by China Mieville. EDIT: I forgot "Hyperion" by Dan Simmons.

This is more a question, in terms of Sci-Fi are people familiar with China Miéville? Perdido Street Station, Embassytown, and The City and the City are classics, Perdido Street Station might be the best fiction I have ever read. Dark stuff