Zunists are just another generic pagan group surrounded by enemies and with no control over their holy sites, which are all held by organized nations several times bigger than them. I'd argue they're in the worst position of all pagans, slightly edging out the West Africans because at least the WAs only have to expand north to reach holy sites.

It's a shame the non-Norse pagans have gotten so little attention really, but then it's the same with the non-Byzantine empires.

As is the two best pagans to play are the Norse, because they have the most flavor events are a really good starting position for early reformation and consolidation, and the Tengri because they're all normally Nomads, which is still really strong compared to the other government types.