megafan

Example:He is a megafanatic of classic rock music and knows every detail about the artists.

Definition:A fan who is extremely enthusiastic and deeply engaged in their subject of interest.

Example:The megafan club for the popular anime series had organized a screening of all episodes and character analysis sessions.

Definition:A group of fans who share a common interest and participate in various activities to promote their favorite subject.

Example:The megafan community for video games often collaborates on guides and walkthroughs.

Definition:A large group of fans who are highly devoted to a particular topic or interest and frequently interact online.