a lot of people have for some reason put black veil brides with groups like slipknot, very different types of metal, in terms of metalcore type, which black veil brides kinda fall under, although they're hardly metal, similar would be escape the fate, falling in reverse, pierce the veil maybe bullet for my valentine and dope more screamo would be asking alexandra, black tide, as i lay dying, of mice and men, blessthefall other heavier are like five finger death punch or Killswitch Engage, heavier again are groups like machine head, lamb of god and you get heavier than that like nile, cradle of filth or any death metal like cannibal corpse etc, on the rise are djent (polyrhythmic/odd time signiture) groups like animals as leaders, meshuggah and periphery , tbh there are loads of sub-genres of metal progressive like dream theater, mastadon, slightly heavier progressive are like opeth, there are reggae metals like skindred etc. too many to list it depends what you're into but i would suggest for you, the first two as the lack of screaming and similar sounding riffs etc. or screamo groups, you will get into screaming if you're not already.