I’m new to the fantasy community, but I’m glad to see it here on Lemmy as well! I would say my favorite novel/series so far has been Mistborn, but it’s kind of the only one I’ve read so far (although it was fantastic). I’d like to gauge all of your responses too!
Earthsea by Ursula K. Leguin - in addition to interesting plots and well-developed characters, Earthsea spends a lot of time philosophizing on the conflicts that arise from human nature and how better moral systems might improve life. Lots of deep thought here.
Discworld by Terry Pratchett - another philosophizer here, but this time with humor. Most of the books stand well on their own, so don’t feel like you have to commit to a 30 book series to enjoy them.
Lord of the Rings by J. R. R. Tolkien - the standard that modern fantasy is measured by. Not much to say here that hasn’t been said before. A classic.
The Curse of Chalion by Lois McMaster Bujold - a broken man recovers himself as he investigates a mysterious threat. May appeal to Kaladin fans (Stormlight).
Stormlight Archive by Brandon Sanderson - my favorite of the Cosmere books so far. If you like Mistborn, this is the obvious follow up.
The Girl who Drank the Moon by Kelly Barnhill - Aimed at younger readers, but well-written enough for adults to enjoy as well. I love the deep care expressed by the protagonists, and how it pushes them to reexamine the assumptions they grew up with.
Digger by Ursula Vernon - a graphic novel that deservdly won the Hugo and yet hardly anyone knows about. You can even read it for free online at http://diggercomic.com/