REAL WORLD, NUMBER ONE!!!

Modern (School based, military, police based, slice of life) (LOVE LAW & CRIME based RP's think Starz Power, The Wire, Breaking Bad)

Horror (Set in Modern Times) 

Supernatural (Set in Modern times or past 100-200 years at most)

Low Sci Fi/Semi Modern ( Think Alien invasion in today's time or time period in past 100 years)

Historical

Post Apocalyptic