Hi mate, there's a list of available squadons here:
http://forums.eagle.ru/showthread.php?t=34062
I would (of course) recommend 74th, however I see you're US based so that's not really practical given our server locations!
I would say the best bet is to get into contact with a few VFS and hang out with them on their TS/Ventrilo to see how well you get on with them all. Many of the servers online are locked, however most have teamspeak details in their server info and when you connect to the teamspeak you can get the server password. The reason for this is simply that the game requires a lot of coordination and can be quickly ruined if people randomly join and aren't on voice comms!
Jump on the 74th Flying Tigers some time - It is regularly open to the public and I'd be happy to help you out with some training. Quite often there are a number of US players on too so you might just find somebody that can get you involved with another squad :)
Hope to see you online soon!