Ophiucha
Auror
But I do also like the idea of just changing up the setting enough to account for the varying cultures, as we do with elves or dwarves. You could even just make elves or dwarves black/Latin@/Asian and skip a step in the middle.
I already said 'yes that would be fine too' to that?
I don't see why all of these ideas are mutually exclusive, though. I don't expect any one author to write 'the all-inclusive medieval fantasy novel'; I expect a bunch of authors to give us their worlds with regards to the fact that you can't paint the world in a single stroke. Worlds like ours, worlds with co-existing cultures of different races, or worlds where everybody is just a different colour and everyone just accepts that. There is no harm in having a character from 'a distant land', and there is no need to make a big deal of it. 'Mohammad, a trader from the Ibn-al Islands and a close friend of Rorik's, waved at the group as they entered the market.' You never need to make more mention of it than that.
It depends on what you're writing, who you're writing for, and who you are. I'm white, so it's not like I'm writing dozens of novels about the realities of racism. I don't have those experiences to share, nor do I think my voice needs to be heard. Since I write primarily about the social aspects of my world, I do often worldbuild in a bit of race relations, but my characters of colour are never defined by it and their stories don't revolve around it. I wouldn't tell any author they have to write about racism, because frankly most authors aren't qualified to do so. But it seems odd to me to write a story that doesn't have people of colour. It's not the world I live in, it's not a world I'd want to live in, so why would I create a world that reads that way? It's like writing a story that doesn't have any women, when everyone in the world lives somewhere where women make up half the population. It's... jarring, both from the modern perspective and from my perspective as someone who majored in Medieval Studies.