Hello. To answer your first concern, there used to be an AdoptMe script Fandom Staff use after building the foundation of a wiki, but that no longer exists. One option, then, is to hope someone comes along your wiki and follows the instructions.
For your second concern, I believe you're referring to Wikipedia's scheme? I don't believe this exists as an option on Fandom, but since it's similar to a mentorship, an experienced user may come around this forum post and help you out informally. There's just no place to go on Fandom for actual adoption requests of a person to occur.