I think it is a mistake to pursue friendships based on what kind of genitals people have. It tells me your values are a bit wacked when it comes to the goals and character of healthy friendships. Its a red flag that you don't have genuine friendship to offer and this will really hinder you. Ironically, it will be a huge red flag to women and may make this impossible.

But get involved in your local ENM, kink, swinger community. Go to events that aren't entirely sex focused. Start looking for them on fetlife. And cast a broad net on dating apps and meet lots of people and have discussions with them about their lives and ENM. You will learn so much from just talking to people.

I find out about events and meet new casual sex partners and make new friends almost exclusively from word of mout and networking these days. But it took a lot of work to get there.

I go to naked swinger pool parties and make friends (not for sex). I go to naked/swinger/kinkster camping events and make friends. I go to meet and greets. I am seeking sex partners and also friends. I stay friends with people I met on dating apps who I didn't click with. I put myself out there constantly.

I have women, men, trans, non-binary friends. Their genitals are irrelevant to friendship.