Nerys Ghemor has some Hebitian-based fanfics. She's also on dA.
I'm working on a piece (more of a scholarly paper than a fanfic) about the end of the Hebitian culture, which I should have up soon.
I'm also working on some more Hebitian drawings.
Unfortunately, there isn't a lot to go on. Hebitians are mentioned only in passing in the shows, and I don't recall there being much in TrekLit either. :-/ I'm doing some research right now that's eventually going to be a fic about the transition from the Second Hebitian Revival into the Cardassian Republic, but it's slow going, so it probably won't be up for a while. If you want to discuss Hebitian culture more, you can always pose questions to my fellow Cardassians - http://cardassia.b1.jcink.com/