There are a number of ways that you can be part of the SAGA Universe.
Group On Group Action
The purpose of SAGA is to encourage grid-wide RP and bring groups together. If you have a RP group that is interested in SAGA, part-time or full-time, you can get together with other SAGA groups to organize role play. Check out the Beginners Guide for a quick intro into the Universe and then contact one of the SAGA group chats in-world or post a request on the Message Board.