BuddyPress.org

Thanks for the reply, @djpaul. The only thing I’ve seen recently was for something called BP Group-O-Matic but that seems only to assign groups to join for people that search for a topic.

Ok, I think I may have found it: https://wordpress.org/extend/plugins/buddypress-groups-extras/

That seems like it would be my next choice to use if I can’t find something exactly like Extended Profiles. While that allows the creation of more custom fields, it leaves the types of fields up to the user. I’m looking to be able to, as the admin, create the custom fields that are available to all groups, in the same fashion as the Extended Profiles custom fields.

I’ll look into this one a bit more.