I'm in a social LS that helps with missions and likes to form XP parties together. There are a few members around your level that do not have subjobs yet, and some that just finished subjobs and working on a main job. Our main focus is friends and helping each other out. I am fairly new to the LS myself, though not to the game (75blu).
If you are interested, /tell Isiac, Sumer, Dru, Brenden, Sparkajen, or Nakijin. They can give you a pearl.