I have to respond with another question: out of everything you have read, what did you enjoy most?
Whoa. Steve's applying sekrit librarian skillz. He may have to be taken out. Unless of course, he's a librarian, and didn't present his union card.
He's right, though. The best way to find books you need to read (that you would enjoy) is to enumerate some of your favorites. If you can say why they were your favorites, that would be even better, but just knowing your favorites is a good lead for reader's advisory services, which is what we'd be providing if we give you recommendations of what to read.
That said, there's classic stuff you can't really go wrong with :
Canticle for Leibowitz if you like post-apocalyptic, for example. You can't go wrong with Bradbury either, if you haven't read any, particularly
The Martian Chronicles. If epic is more your style you might try Frank Herbert's
Dune. Louis McMaster Bujold's Vorkosigan stories are quick, plot-filled, fun reads. They move like action fluff but they never are quite just fluff. There's Philip K. Dick if you like the paranoid, surreal, what does it mean to be human themes. I'd steer you to that if you liked the flavor of the Eekhout story
Authorwerx. For the brainier, stretch your mind, make you think, side of the sf spectrum there's no one better than Ursula K. Le Guin. I also never hesitate to recommend Gene Wolfe to anyone who likes to have to pay attention while they read.
And that's all I can really offer you without a better sense of what you really like.