Make something special. Create a course that people can join for free. Then after the course, offer them a premium course. 1 podcast per week, 1 or 2 videos and 2 articles per week, plus a bi-weekly live chat with you! Just for 5 dollars per week
You need to work on your material first, but I definitely think it's possible. Think about how Neil Strauss used the Stylelife challenge to generate lots of attention (and a community!) to market his new product (forgot which it was... annihilation method maybe?).