Hey /raskreddit I am going to do my research proposal on Reddit and I need your help

What I need to know is this I need to identify an issue which deals with any one of the terms or concepts below and I need to know which one would suit Reddit best.

• Representation (Race, Gender, or Sexuality) • Ideology/Hegemony (can include Subcultures) • Consuming Popular Culture (can include Audiences) • Identity/Subjectivity (can include Technology)