The first example I can think of off the top of my head is slightly NSFW, but there is a series (comic and show) called "Interspecies Reviewers". This series has little to no racism in their world. Just... it doesn't exist. No one calls elves "twigs" or "knife-ears", no one calls the beast folk "animals". But there is ONE bit of almost racism that exists, and it is actually the part I want to talk about.
In the setting "fiends" are seen in a negative light. Not like denied services or insulted or anything, but they have a bit of a negative association, people don't seek them out as partners, ect. We only know this because a member of the fiend political party that is trying to raise votes for their platform contacts the main characters and asks them to review a fiend brothel (the entire premise of the series being an ecchi journey of reviewing various brothels). And what they find, almost immediately, is a little known fact about fiends... they take contracts literally. Even spoken ones. So, a man who proposes to a fiend woman and declares "I will make you the happiest woman in the world" gets pissed at the guy if she is not the happiest woman in the world, because they made a deal and he is breaking it. And they spread the word of this, and that misunderstanding is cleared up.
But the world isn't boring. The world is fascinating, with tons of interesting takes on various species and how they can use their special abilities. The only reason the almost milk toast racism of "hmm, fiends have nasty personalities" exists is solely to show this really interesting take on fiends. And I would argue it isn't even really a racism, just a stereotype.