Alcoholics Anonymous
Worldwide organization based on the 12-step program. AA has a massive network of meetings, each with their own characteristics. You can also find their official forum here.
Activity:
Unclear
Activity varies based on the group.
Access:
Private
There are many AA groups out there. Each has their own access levels.
Features:
In-person meetings
Video/online meetings
Chatroom
Mobile App
To find in-person meetings near you, contact an intergroup office near you for local meeting details. You can find the nearest office using this directory.
Online meetings: https://aa-intergroup.org/meetings
Chat meetings: https://aa-intergroup.org/meetings?formats=Chat
Meeting finder mobile app: https://www.aa.org/meeting-guide-app
Focus:
Spiritual
AA traditionally contains spiritual, non-denominational elements.