All of the podcasts I really enjoyed that talk about cults and extreme belief.
Let's Talk About Sects
The Gateway: Teal Swan
Heaven's Gate
Dear Franklin Jones
Guru: The Dark Side of Enlightenment
Growing Up Moonie
Astray
Transmissions From Jonestown
The Followers: House of Prayer
Trust Me: Cults, Extreme Belief, and Manipulation
The Turning: The Sisters Who Left
Escaping NXIVM
The Sunshine Place