Ask HN: How do I start a mens social group?

I just finished listening to NPRs Hidden Brain episode on male loneliness[1] and I want to do something about it, both for myself and for other men in my area. I think starting a mens social group in my area is a good place to start.

How do I start this group? How do I find men to join? What sort of things should the group do?

1: https://www.npr.org/2019/10/11/769538697/guys-we-have-a-problem-how-american-masculinity-creates-lonely-men