RSS, Fire C2, RCOD, Bloodfields, Assent, Stillmoon, Hate, Droga, Char B, Chardok, Sol C, Seb, Hole, VT, Time, PoEarth, Sol Ro, Tactics, PoDisease, PoAir, PoWater, PoNightmare, CoDecay, PoJustice, Stoneroot, Undershore, Hive, Illsalin.
Seriously- What type of gear, (obviously good since you say you solo mpg)
What do you want to get out of soloing? Items, plat, diamonds, xp?
Hopefully you do not get bored with being a board.
How hard do you want to work at soloing? Easy plow lots of kills, hard mobs, long recoup?