Not entirely sure about how you'd like a combination of community/journal-based, but I play Artemis from Young Justice at dramadramaduck. It's a little slice-of-life-y, to be honest, but there's a lot of room for characters to set up their own plots or whatever. Honestly, the game ad can probably explain it better than I can right now. But if you're interested, I'd love to see anybody from other DC properties!