I've been a member of this site for four and a half years, and I can say that there are not a shortage of female subs on this forum. Quite the opposite. I think there are many female subs.
geekmaster, you say in your post that you found 3 or 4 good female subs, and had a lot of one night stands. What exactly is it that you want from the subs you are seeking? Do you want an online relationship? An online relationship leading to real life, or a real life relationship?
I've heard of circumstances where a husband and wife have a third party sub or Dom, either male or female, either online or real life.
I had an online relationship for a while, that I had hoped would go real life, but didnt. The girl was bi sexual, and we had discussed many times about us having a real life female play partner.. both to satisfy her lesbian side, and to give me a play partner to have besides her. A threesome. I think if I had suggested that I wanted three or four subs to rotate, she would have immediately left me.
Finding three or four female subs at once, and rotating them, would seem like a very, very tall order for both you to fulfill, and for the subs to fulfill, and to understand.
If I may.. may I suggest that you first start with an attainable goal.. Try to find.. one sub.. and see how that goes. I have talked to many girls over the years, and I never approach people with the idea of "be my sub" or.. "I want you, and two or three other subs". I try to get to know them as people first. This approach seems to work at least sometimes, because.. I have developed many friendships online, with people who I have gotten to know, and value as people, instead of trying to approach wanting these people as multiple subs. Even with my past online relationship: We had talked once, and then reconnected, and she was helpful to me at a difficult time in my life. Yes, we had our cybersex, and play, but, we were also important to each other as people.
I hope what I'm saying is helpful. I wish you Good Luck in finding the sub you seek. If it were me, I would first concentrate on finding one, building that, and going from there. There are many girls willing to have play partners for the purpose of having a threesome relationship. You might just well find you end up with a loving relationship with someone who is willing to engage in a threesome, and, eventually, two caring subs, with whom a threesome relationship is very loving.
Mitch