1. Custom Religion
You can create the perfect religion that suits your gameplay.
2. Asatru
Only problem is that it’s unorganized, but you can easily reform it. Controlling 3 holy sites is not a huge problem thanks to Warmonger casus belli and strong man-at-arms units.
Easy to conquer holy sites.
3. Catholicism
You can ask golds, indulgences, claims, and rival excommunications from Pope. Also, there are crusades which is the main title of the game.
Got almost all holy sites.
4. Orthodoxy
Can ask for gold, claim, and indulgences but no excommunication and crusades. Basically, downgraded version of Catholicism.
Holy sites are in close proximity.
5. Ash’arism
multiple spouses.
Close proximity religious sites. All controlled.
6. Coptic
Can only ask for gold and claims from Coptic popo. Sites are hard to get.
7. Tengriism
warmonger religion allows you to conquer anywhere! Ideal for Greatest of Khans achievement too.
Holy sites are far, far away but you are tha Khan!:
Tengri ruling vast region, so no conversion needed early game.
8. Vajrayana
Witchcraft accepted, same sex relations accepted. A good authentic religion for an interesting gameplay. Preferred for India runs.
9. Akom
Africa
Adorcism
Ritual Celebrations