You are in luck. A direct disciple of Yogananda has a retreat center 90 minutes N.E. of Atlanta in Lakemont, Georgia, near Clayton. His name is Roy Eugene Davis and he was authorized by Paramahansa Yogananda in 1951 to initiate into Kriya and has been doing so ever since. He is the real deal Kriya sat guru, and as humble as anyone you'd ever meet. This is as authentic as it gets. Initiations are usually offered during the summer retreats, or at other programs he offers throughout the country. Their website is: csa-davis.org/. Namaste, Conner