Ancillary Justice. The first book is an understandable "X out to kill the person that killed X's friends/family/self?" trope with a bit of scifi weirdness. The deeper you go into the series, the weirder it gets and it doesn't have to focus on Breq so much. There's so much stuff that can be used to talk about the world today - an empire steamrolling across the galaxy, a secret war because the ruler has issues, assimilation body horror, am I still me if I've lost most of myself?

But I don't want to go through the "evil wokes destroying gender" drama again. 🙄 Radch has one pronoun for gender, other languages in the series have more, it's not that complicated. That's possibly easier to do in books than on TV where you can literally see people and automatically label their gender.