Yep, try Al-Anon. Without knowing more about your particular situation, can't really offer advice beyond the fact that your family member is unlikely to stay sober without external support - from a 12-step program, therapist, or both.
My DH has been sober for over ten years, went to daily mtgs at first, then less frequently, now much less frequently - busy with work/kids. He has also sponsored many guys over the years and has an active meditation practice. We are spiritual but not religious. Don't let the God stuff get in the way, you definitely don't have to believe anything.