Research Papers / Having trouble starting off my research paper about "Superheroes" [9]

Hello. I must write a 7 page research paper and i chose my topic to be about superheroes. I chose this topic because i thought it would be fun to write about, but as i start looking up on it it seemed only to be about entertainment and such. What i am stuck on is i can't come up with an ideal argument to base the whole paper around. The sources I've read up on describes them to be related history or certain gender of heroes could represent something. Anyways i am having a real hard time sorting through what is fine to write about and what's irrelevant. This is my first research paper.