toni morrison is really good. Personally i've just read song of solomon but I've heard her other novels (like Beloved) are great too.

If you're into Sci-Fi, I heartily recommend The Stars My Destination by Alfred Bester. It's an intense novel about a man consumed by his desire to exact revenge. I warn that there is a rape scene.

The Ones Who Walk Away From Omelas by Ursula K. Guin is a great short story that touches upon the topic of Utilitarianism. Not a light read.

For a lighter read, I recommend Howl's Moving Castle. A lot of people don't know about the book because of the success that the movie had, however, both are amazing in my opinion. And the book tells a completely different story from the movie so its worth picking up.

(Wait haha, I didn't realize that you didn't want non-fictions) Non-Fiction I would recommend "Hero of the Empire" by Candice Miller about Winston Churchill's escapades in South Africa during the 2nd Boer War. A fun read.

I just finished Kindred by Octavia Butler

I really like stuff from Neal Stephenson and recently enjoyed Perido Street Station by China Mieville a lot, but those aren't exactly light reading. You have to be able to stomach a lot of infodumps that don't really go anywhere.

I've also been getting into Cory Doctorow a lot. His stuff is a lot less dense and the themes he explores will often be of interest to the people here.

I'm also catching up on Terry Pratchett's Discworld series, which comes highly recommended. It's lighthearted fantasy that still manages to talk about Important Stuff, such as morality, power, inequality, etc.