This list will be by no means exhaustive or even particularly detailed. But I hope it will be more interesting than those “1d10 Names of random garbage” posts that I see everywhere 🙂
Just off the top of my head…
Order of the Stick: OoTS takes place in a Multi-ethnic world that for most purposes seems colorblind, at least insofar as humans are concerned, though racial tension is explored a bit through the goblins (green) and hobgoblins (yellow). Features both non-white protagonists and antagonists. Also depicts a number of cross-racial romantic couplings.
Earthsea: Multiple ethnicities exist, though each culture is homogeneous in the pockets they’re indigenous to, except in certain cosmopolitan areas. Features a non-white protagonist and a black side-kick. White people are pretty much villainous vikings through most of the series.
Middle Earth: Oh, my. Despite some claims as such, Orcs are never explicitly said to be “black”, just that they are all (probably, even Tolkien admitted having reservations, as a Christian man, in claiming that an entire race of people was evil, irredeemable and incapable of good) evil and speak the Black Tongue. Easterlings are never explicitly defined as Hun or Asiatic or such, but they’re all pretty much evil barbarians. Same with the Haradrim, except one gathers that they’re Moorish or Arabian and universally opposed to Civilization (with a capital C). I’m pretty sure the Wainriders are Gypsies.
Elder Scrolls: Lots of races here, and a lot of them are pretty racist against each other. But no race is universally defined by their racial traits, at least as personality goes. It is interesting, though, that there doesn’t seem to be much, if any, racial mixing (with the exception of the Bretons, who are apparently all half-elven?). I wonder if there are any black people that aren’t Redguards? Or if there could be a black imperial? “I’m from the imperial province, born and raised!” Too bad, you’re black, so you’re a Redguard.
Dragonlance: Were there black people in Dragonlance? People were pretty uncomfortable around Raistlin because of the color of his skin, but I’m not sure that counts.
Prydain: I’m pretty sure everyone in this was either welsh or a goblin.