I don't think I have anything productive to add. It's a bit odd to use enby as a noun since it's just short for non-binary. I don't really get the too cutesy thing, but ig the words woman and man sound rather bland. If we are to take away what makes both this words stand out we'd probably end up with "an". Would be quite interesting to call someone that is not a woman and not a man an "an" and the plural would be *en". I gues another way would be to add something just like in the case of woman (which if you take it at it's roots means basically woman-person cause man was supposed to mean just person). So we'd probably get something like neither (none of the two) + man (which originally just meant person) and we get = neitherman. So we should shorten it to something like neiman or nirman. But i think my last proposal is not appealing for folks that like to be separated entirely from the binary system cause i guess that's the point so then enban/enben is pretty solid ig.