What are some not commonly practiced religions?
Something like Greek mythology or the Norse gods.. But it needs to be old
When the worship of Greek gods was practiced, it was very common. So you might want to pick something else. :)
any of the pagan faiths, including Wicca. Zoroastrianism, Jainism and other Eastern faiths
Not commonly practiced today?Santeria, Jainism, most of the African tribal religions, Rastafarianism, Sikhism, Asatru, Ba'hai. Even religions considered "mainstream" like Judaism don't have that many adherents.