Sci-Fi:
I recommend Dawn, Adulthood Rites, and Imago by Octavia Butler. They're usually compiled in one volume called Lilith's Brood (previously called Xenogenesis). Humans pretty much wipe themselves out, but are saved/zoo-ified/absorbed by an alien race called the Oankali, who travel the universe integrating other species into themselves (physically). They're humanity's only means of survival, but there's a lot of resentment. Explorations of race and sexuality, among other things.
Fantasy:
They're incredibly brutal, but I recommend R. Scott Bakker's Prince of Nothing and Aspect Emperor trilogies (though I haven't finished the latter). A sociopath antihero manipulates everyone he meets and rises to power in a grimdark, horribly sexist, pre-medieval world. The worldbuilding is fascinating and detailed, and the writing/philosophizing is great--but there are no true "good guys", and atrocity abounds. Still, depiction is not endorsement, and you said you liked the Dune books . . . so maybe give it a shot.
Also, I second Khazidhea's recommendation of The Diamond Age, by Neal Stephenson. One of my favorites.
I recommend Dawn, Adulthood Rites, and Imago by Octavia Butler. They're usually compiled in one volume called Lilith's Brood (previously called Xenogenesis). Humans pretty much wipe themselves out, but are saved/zoo-ified/absorbed by an alien race called the Oankali, who travel the universe integrating other species into themselves (physically). They're humanity's only means of survival, but there's a lot of resentment. Explorations of race and sexuality, among other things.
Fantasy:
They're incredibly brutal, but I recommend R. Scott Bakker's Prince of Nothing and Aspect Emperor trilogies (though I haven't finished the latter). A sociopath antihero manipulates everyone he meets and rises to power in a grimdark, horribly sexist, pre-medieval world. The worldbuilding is fascinating and detailed, and the writing/philosophizing is great--but there are no true "good guys", and atrocity abounds. Still, depiction is not endorsement, and you said you liked the Dune books . . . so maybe give it a shot.
Also, I second Khazidhea's recommendation of The Diamond Age, by Neal Stephenson. One of my favorites.