I am lucky. Women came easy to me, mostly just for sex. I only seriously dated 3 women in my life but had sex with 30+. The FB before I met my wife worked in my office. Invited her over for dinner and some wine and we ended up having sex. She moved in a week later and we were together for a year before she and I both had to leave for jobs in different States. She wanted me to get her pregnant but not be in the child's life. I refused and that was when the lousy in bed, small penis, not satisfying bitter statements came out. Seems that when you break up with girls they go right for your crotch but never complained when they were having multiple orgasms every night.
I will not lie, it helps is you are good looking or at least sexy. That makes it very easy. I have been poly all of my life up to 6 years ago at the age of 60. Another advantage is being good in bed. Does not matter how big your penis is since most girls do not want a steady diet of large cocks. It leaves them sore. All that matters is that they had a few great orgasms with you. At worse, as long as you can give a girl an orgasm and not get clingy, you just need to date women. While you may be able to just ask someone who is complaining about being horny to be your FB, or at least give it a try for one night, the best way is to date a lot of women and stop seeing the ones looking for a relationship and having sex with the others.