Related Clues:

• Sunnis and Shiites, e.g.
• Unorthodox religious groups
• Offshoot groups
• Extreme sects
• Docetism and Sikhism, e.g.
• Fringe groups
• Fanatic followings
• Sunnism and Shiism, for two
• Doctrinal offshoots
• Sunni and Shia
• Devoted groups
• Shakers et al.
• Groups with fringe benefits?
• Split-off religions
• Spiritual spinoffs