Ok here's a theory I have:

In Minecraft diaries (if you haven't seen it go and see it) and Minecraft MyStreet Aphmau (Jess) never says in the video description who Voices Aaron, so I think that the only person that could would be Jason, her husband, cuz she has only mentioned him really... And he has no social medias or a YouTube channel (as far as I know) So I'm gonna look more into this theory and see if I'm correct, by finding Jason in any Aphmau videos, comment if you think it's possible or not