I don’t particularly care if a band is Christian if the music is good. Firstly, a sizable chunk of the lyrics of bands I listen to are fictional or based on fiction; why be upset about one mythology and not any others? Secondly, I enjoy a lot of baroque music; good luck getting away from Christianity centered music there.
Saviour Machine!
Does Sympathy count? Technical Death Metal that absolutely slays.
Tourniquet Deliverance Theocracy Narnia Final axe Boarders
Good stuff
Fathomage makes pretty good stuff.