As a former leader of Warp Fleet, I can personally vouch for this group. They are rebuilding after a large scale merger with Stormfront and could use some new blood. They have 2 sister legions and I would assume good relations with Stormfront as well. There is a FB group page already set up with a good bit of traffic and a ton of members. I'm still an admin there so if anyone would like to discuss a merger, PM me and I'll get you the link. Like Krog said, Level 4 base that has already fought off a few significantly more powerful legions.
Plus there's a few decent sized guns that still watch out for them when they need it.
Warp Fleet