Fellow metal head who lines to dabble in electronic music here and there. TBH I listen to playlists I find more often than specific artists/producers. I like a variety of drum and bass, but playlists I've listened to including the words "atmospheric" or "dark" might be more up your alley. I've found goa trance can often be dark yet high energy. One artist I do know that the first La Castle Vania song I heard reminded me of is called Savant. Hope some of this leads you to some tunes!