At MRp, there are certain race restrictions, currently not many, so let’s keep it that way.
No dragons, no demons, no angels/god/demi-gods. You may not be an animal, though, you can be a Neko.
Here are some pages, with special descriptions for a few classes.
This is a main descsription, there are sub-genres, if you know more about these types, feel free to add to this page.
Nekos look exactly like humans except for the fact that they have ears and a tail.