There's a boy named Spark on Corvus and a girl named Cheer on Apus that are really friendly. They'd take good care of you if you meet them. They're some of my best friends.
Extreme on Cetus has had it a bit tough lately, but he's definitely not a bad person, so even if he appears distant he's really very kind, and he needs to get to know more people. Same goes for Narumi on my team.
Vulpecula and Orion can be really grumpy and short-tempered and those two teams are in a feud. I don't think they are bad people, but you should be a little careful and be sure to be polite.
Hmmm, Canis has a new member named Will, and he's really adorable. I think you'd like him!