>>96038246
Maybe have a mix of Zoroastrianism and God vs Satan vibes by having the One God be the ultimate for of Order and Chaos Undivided be represented by the Satan/Shaitan?
It wouldn't even really contradict with their pre-established lore, since Devils are only a subgroup of Djinn in Islam, Satan's followers.
That means you can have abundant daemonologists and have One God not!paladins who abhor demon cults and undead.
Other gods of men could be seen as yazatas or angels, lesser divine beings that can be acknowledged and even ok to make bargains with, but heretical to outright worship.