There are a few anime/manga fandoms that I'm side-eying because I don't think they're very rare. They're rare on AO3 because there's not much anime/manga fic there and because they're old, but I don't think they're really rare. I'm not planning to challenge them, but I also don't think I'll offer them.

I'm always surprised by the people who say they can't find enough fandoms to offer. I don't consider myself widely read or to have seen many movies, but I can usually find forty or fifty things that I might be able to write (and there're at least another couple of dozen that I know but am sure immediately that I can't write). I don't offer all of them, of course. I whittle down the list considerably.

I seem to recall that last year they limited us to offering twenty fandoms.