Two informative docs, I watched both. I liked the second one a bit better. You can rent them on amazon for 2bux.
Chasing the Spirit: Gorovodu in Southern Togo (trailer)-https://www.youtube.com/watch?v=CFWiIqlgoIM
African Herbsmen: Healing and Religion along the Bight of Benin (trailer):https://www.youtube.com/watch?v=NVBmMYV70us