I'm trying to discover more new metal, but I'm having a lot of trouble finding bands as heavy as I want without scream/growl/etc vocals. I can tolerate a very small amount here and there, but I'm looking for predominantly clean vocals. Prog or not, makes no difference. Heavy, up tempo, high energy music with singing are the only requirements. My playlists for working out are too short as it is right now, and I'm getting tired of listening to the same things each week.
Thanks for any suggestions.