Three days grace, linkin park, saliva- like a linkin park knock of. Papa roach, which might be a little hard 4 u. oh! And skillet. They are classified as Christian metal bt none of their songs are about god so I don't really get it. Lol. But they are VERY good. if ur looking for girl bands there is halestorm or fireflight and flyleaf but I'm not sure if you will like flyleaf. Paramore is good but they are alternative, not metal. Lol I could go on all day. Hope I've helped.
There are thousands of bands you can listen to. And what about Skillet they're really good. I have been listening them for two or even 3 years and I am not bored. And also try Sonata Arctica! Their lirycs are nice. Shamandalie is the best their song. Oh and kamelot are awsome. :-)
Not sure how to describe his singing and if you call it Heavy Metal vocals.
Your really missing out by avoiding Heavy Metal, I would say.
Don't tell me you listen to black metal and death metal, please.