SciFi and Fantasy Book Club discussion

Looking for well-done books that center on sentient races with different psychologies, preferably fundamentally, but maybe philosophically if it’s done well enough to give me worldbuilding shivers.

Obviously the best answer is Adrian Tchaikovsky’s Memory series starting with Children if Time!

And also Ann Leckies SF books most notably her most recent

Or going old school the Catteni books by Cherryh

Also by CJ Cherryh, try Forty Thousand in Gehenna

Thank you! Will take my time looking at reviews. What about ones with humanoids, spirits, or god-like beings?

The Gods Themselves by Asimov might be worth considering.

Semiosis

Runemarks (gods and half-gods)
The Pride of Chanur (aliens)
The Cloud Roads (non-human races)

Some of the Doctor Who novels where the focus is on the Doctor. I've not read it yet, but there is one based on the Sylvester McCoy era Doctor and it's all about the Timelord equivalent of alzheimer's disease. It sounds pretty interesting.