Doctrines don't have associated churches. I don't know if it is a doctrine or a denomination but I suspect it leans toward the former.
I’ll rephrase:
Can anyone give me the name of a single mainstream church which includes “Dominionism” — with or without mountains — as one of its doctrines?
Failing that, a storefront or countryside church with a membership of, say, 20 or more?
(It’s my belief based on being in hard-to-medium shell American Protestant churches that “dominionism” — especially when capitalized as “Seven! Mountains! Dominionism!” is right up there with “Trilateralists!” and “Protocols of the Elders of Zion” as artificial boogeymen constructed either out of whole cloth or by ascribing eeeevil powers and intents to what is really quite ordinary.)