I have some ideas (these are short versions you could add things to them):
Wiki Fan:
You were a fan of the fandom wiki before you noclipped into the backrooms. You have more knowledge than others. You know your way around this place, and you could be the leader of many groups.
Child:
You noclipped into the backrooms as a child. You would be one of the most vulnerable members of any group that you enter. You do not know how to do much.