[member="XxkenykenxX"]
The factions of the movies are either gone, or DRASTICALLY different in the current day and age (Take my own faction of the CIS, for instance. Outside of leaning on droids to do the heavy lifting, very few similarities to the CIS you see in the prequels). Currently the closest thing to an Alliance/Republic faction we have is the Silver Jedi Order.
EDIT: If you're curious about the planets available to you, click the Map button on the top right hand corner of the page. It'll take you to an interactive map of the galaxy, complete with territory clouds for the various galactic super powers.