operatic/glam vocals over banger metal instrumentals

Holee shite I just listened to Holy Diver cover by Killswitch. Now I'm itching to hear more like this? Can someone recommend me songs/bands that has similar sound to that song please??? Need that operatic/glam vocals over banger instrumentals. Sorry if I described some things incorrect. Please help out I mainly listen to BM so I don't know much of this type of bands/songs