Tbh, there still isn't a lot out there. This is one of only two nonfiction books I know of, and I did not like the other at all. There are a couple of memoirs I can think of -- Anne Finger's, in particular, was really helpful to me -- but it's all obscure, small press stuff. And there's an org called Through the Looking Glass, but it, like all the books I'm thinking of, is really directed at physical disability. So yeah. Basically mentors are it, and just throwing yourself out there.