So. I speak for no one but myself. That said: hello, I'm agender. My pronouns are "they/them/their/theirs." I like those pronouns because unlike many of the other options, people recognize them as words and know how to conjugate them. I have a friend who goes by "e/em/eir," which people often just don't know what to do with. On the other hand, e will never worry about singular/plural confusion, something that people get confused about with me all the time.

I hope this comment is helpful.