Ask around. If you don't have a friend or family member who might serve as a surrogate, its possible that your friends know of someone.
Consider setting up a blog about your family and why you want to find a surrogate. Then, share the link on your social networking sites like Facebook, Twitter, or Instagram, and ask your friends to spread the word.
Ask your church or civic group to spread the word.
Be sure that anyone who is referred to you is well known by someone you trust. Conduct a thorough interview of this person. Find out why they want to be a surrogate, and what they hope to get out of the experience.