There are many legions out there. It depends on your play style. Ill list a few along with their point of veiw
The many DOO's(DOO 1, 2, etc.): Protect all of their members to the death from any offender(Although some disagree with their actions)
Project Anarchy: Will defend members only if it is justified(That is, the guy hacked you and you did nothing to them, so we disable him oince or twice. if he does it again we pound him)
Paladins/Rangers of Galaxy Legion: I dont really know actually. Ask Kaos(I think he is the leader)
And look on the legions forums for others you may like
