AA is the biggest but it's meeting is run on it's own. But the real question is are you really to change an if so then you need to research on which recovery program will work for you. If one does not work then try the next one and if trying. It's hard because your fighting yourself but it will be worth it when you feel good about yourself and you don't have to use alcohol to comp in life. If your going to fully do AA then you will need to do that steps meetings and find the right supporter. If AA does not work you can try SMART or SOS and even rehab if you need to.
Good luck with your sobriety and your always Welcome to SR!!