You're in for a true Dominant Superior or submissive. Advertising here has the advantage of targeting a specific community and it is free.

However, I feel you would be more likely to connect if you got in touch with your local BDSM community. One way is by joining FETlife, which has an international membership. You can also find other ways to contact your local BDSM community on the web. Most major cities now have weekly or more frequent public meetings, usually in a pub, called "munches." These are the public faces of BDSM communities. Sometimes, the community has designated a greeter whose job is to meet shy beginners and make them feel comfortable.

Good luck, and let us know if you connect!