Another person already said Stanislaw Lem, so I'm going to take a side route and suggest one of my favorite series...

BUUUT... It's not sci fi. It's still genre fiction, but rather modern dark fantasy.

The Night Watch books by Sergei Lukyanenko

https://en.m.wikipedia.org/wiki/Night_Watch_(Lukyanenko_novel)

Premise is that magicians, wizards, vampires, witches, werewolves, sorceresses, they're all real. The forces of light and dark were at war for centuries before they came to an agreement. The forces of dark would limit their activities to licensed behaviors, policed by the Night Watch, and similarly the forces of light would restrict themselves, policed by the Day Watch.

Now, here's the problem... Lukyanenko is a Russian nationalist of Ukranian heritage. He fully supports the war in Ukraine.

The books have nothing to do with it and were largely written even before the Crimea invasion, but since then Lukyanenko has made a large number of unfortunate comments.

So how much you enjoy the works is going to depend on how much you can separate them from the author. ☹️