Welcome!
Get to an AA meeting today and introduce yourself when the chairperson asks if there are any newcomers. Don't worry about a sponsor right now, that will come.
Join the monthly sobriety class on this website, you still have time for the June edition, but also join the July group when the time comes. And log onto this website everyday.
If you have after treatment recommendations from your detox, follow them. An IOP group (Intensive Outpatient) didn't fit for me. I'm a garden variety alcoholic, and the IOP group I joined had mostly people with significant illegal drug issues and all the group seemed to want to talk about was their legal troubles and court dates. Maybe another group would have been better, but I quit because there also was financial copay with my insurance which I felt outweighed any potential benefit I might get.