Kicked off by a post from The Watcher, the RPG.Net forums made The Only Sci Fi Star Chart You'll Ever Need—a cartographic compendium of common space opera tropes.
I'll start the ball rolling by listing a few potential areas and features:
The Diverse Alliance of Nice Guys (or should it be The Nice Alliance of Diverse Guys?)
Proud Warrior Empire
Space Nazi Territory
Star Faring Rome
The Do Not Cross Zone
Elves With Starships
Casablanca Station
Ancient Space Gods' Lawn
Pleasure World
Starship Graveyard
Hostile Robot Hordes
Anomaly #12
