To put it in to perspective, Christian Orthodox churches are some of the most conservative churches you can find.

Take that with a grain of salt. I would say anymore that every denomination is going to have a stupidly wide variety of political/biblical conservatism levels. It's more dependent on each church's local community and the positions of the pastors/priests.
Some denominations may have better odds of a specific church hosting a healthy, conservative community, but it's not a guarantee.