Hmm, some newish but mostly older and not mentioned above..generally go-to favourites:
to follow on from Twisty’s theme:
The Agonist (newish Arch Enemy vocalist was there previously, and the new Agonsit new vocalist is way more than a good match)
In Flames
Soilwork
Mercenary
Scar Symmetry
Children of Bodom
Engel (In Flames guitarist – kinda bouncy stuff, great for the gym as is BFMV)
Wovernwar (remnants of As I Lay Dying)
Amaranthe (3 vocalists, melodeth-meets-eurovision !!)
(Could add Epica, After Forever, Revamp, Lacuna Coil, November-7 for more female-fronted melodic/symphonic stuff..The Kells too for female fronted metalcore, a pity they called it a day after 2 albums)
Testament
Annihilator
Hammerfall
Sabaton
Serenity
Alestorm (yaaaarrrr!!!)
Grand Magus
Devil You know (Howard Jones’ new band…bloke from Killswitch, not the 80s 😀 )
If Dream Theater floats yer boat, but a little more metallic and less messing around 🙂 :
Symphony-X
DGM
More kinda rock/metal
Soil
Die So Fluid
Stone Sour
Five Finger Death Punch
And someone’s gotta add ’em 😉
Rammstein