some artists that i have:

Two Steps From Hell -
army of justice
road to revelation
sons of war
dawn of war
false king
false king (rock)
2000 leagues
infinity
recon j74
after the fall
armored cars
black blade
black blade (underscore)
Black hat
breaking
chariots of blood
chariots of blood (rock)
crash
demon rider
dragon rider
electro freak
enigmatic soul
exhumed
invincible
invincible (underscore)

and a bunch of:
Volbeat
Faderhead
Mankind is Obsolete
Ayria
Brian Tyler
John Murphy

what i have already works for every style of game from FPSs to RPGs but ive used the playlists so many times and im needing something similar but new.