The simple and correct answer to your header question is....You don't.

You find a woman that you as a MAN is attracted to and she is attracted to you, the MAN.

Date her, get to know her, let her get to know you and see if there is reason to continue seeing each other as a MAN and a WOMAN. You can feel her out about her openness, her sense of acceptance of others and diverse lifestyles. You will get to know her moral stand etc. Once a bond is made, you then tell her about you being a CD. Making it the main issue is a big lonely mistake.
I have had 2 past wives that once told early on in the relationship grew to not only accept it, but participated and even had some fun with it. The only woman that knew from day one was my last 7 year long relationship. We met on a website for those into BDSM and D/s. A site where we are accepted and many dominant women tolerate or even like a CD.
I'm on several dating sites right now. I am once again looking for a life partner. But I will not post anything about my being a CD. That's for them to find out later once a bond and trust in one another is established.