Vicas

I really like ann leckie's books, especially the Ancillary Justice series (sci-fi) and The Raven Tower (fantasy)

they're fairly well known but just in case: Iain M. Banks, Alastair Reynolds, and Ursula K. Le Guin for SFF, and David Graeber for the more sort of anthropological/historical/theoretical stuff. his book on debt is one i recommend to nearly anyone who seems remotely interested

Have you read the Dawn of Everything? It's a political history book and how the typical view of societal development is wrong.

Oh, also there's a book by leftist historian Zoe Baker about early anarchist movements called Means and Ends.

Monkey/Journey to the West is one I've returned to a lot just cuz it's a really fun story even beyond its cultural impact. I recommend the Arthur Waley translation for accessibility.

Eric Hobsbawm's histories, particularly the four "Age of..." books that cover 1789-1991 between them.

"A Memory Called Empire" by Arkady Martine is one of the best new SF books I've read in a second. Set in a universe where ancient Mesoamerican empires endured to become the dominant interstellar presence, it's told from the perspective of an outside diplomat having to navigate all the intricacies and culture of this empire that has taken on a life of its own. Very interested in ideas of power, identity, belonging and language, while still connecting them to good personal narratives.

It's a little bleak, but The Jakarta Method by Vincent Bevins is a very informative look at anti-Communist atrocities around the world with a particular emphasis on Indonesia in 1965-66. Probably the best non-fiction book I've read in recent years.

I echo the recommendations for Le Guin. I personally read her Hainish "cycle" in publication order but the earliest books are the weakest in my view and probably not the best start point. My favourite is The Word for World is Forest, which is a very angry novella and amounts to a science fictional howl of anger about the Vietnam War.

I read much less fantasy than science fiction, but one I read recently and liked a lot was Mythago Wood (1984) by Robert Holdstock.

Most folks are aware of Neuromancer, but the rest of the trilogy is good too - Count Zero and Mona Lisa Overdrive. Also William Gibson's second trilogy with Virtual Light, Idoru (one of the best cyberpunk books ever written), and All Tomorrow's Parties. (This user is a William Gibson mark.)

This Is How You Lose the Time War Is great and I recommend it without any spoilers.

Too Like The Lighting by Ada Palmer, Walkaway by Cory Doctorow are some SciFi I've liked lately