My brother just fought a two year long false rape allegation. He won fortunately, but this made me really scared of women but at the same time, I'm quite lonely. So I want to build a social circle, preferably with just men. The problem is that most social circles are a combination of men and women since the men tend to bring their girlfriend or female friends along.

My question is, how can I built a social circle but with as little interactions with females as possible. I was thinking of partaking in "manly" hobbies like martial arts etc. What are your tips?