Welcome back! There are many Guilds around that can give you what you're looking for and more. Sounds like you're already on the right path in finding one by talking to people in Marketplace, since it's often the most active. You could ask to be recruited or simply wait and eventually someone may ask you. Don't forget to check out some Player Chats, many Guilds have a public channel too so you can get to know some of the other players. Best of luck to you, and I'm sure you'll find a Guild that suits you.