You might wish to become "verified" members and place ads in the "Interracial Dating" forum.
However, to advertise for a Stud, Stallion or Bull, YOU, the wife or female half of the couple must place the ad and correspond with them as husbands/cuckold males are not permitted to advertise or approach the dominant male members. Please read the statement regarding dating in the Announcements" forum.
You might also consider seeking out and attending "Swingers" parties and events in your area to get your "feet wet" before trying your luck in bars/clubs or advertising on the Internet. Always take precautions to insure someone knows where you are and who you are with before going anywhere alone with someone.
Don't let the excitement of the moment cloud your better judgement.
Good luck.