The world of books is wide and wondrous. Though I read widely, I am choosier in the genres I edit or coach.
All else being equal, you want an editor or coach who works in your genre. Check out the article on working with an editor for more information, or sign up for the newsletter below and receive a complimentary copy of Finding an Editor: What Indie Writers Need to Know, which includes what to look for, where to look, and questions to ask your potential editor.