Crimson Thorn (favorite) Antidemon Demoniciduth Demonicidio A.W.A.S Mortification Exousia My Silent Wake Sympathy there are tons more.
Not a big fan of "Christian" anything. As the guy above me suggested, Impendimg Doom. Also try The Great Commission.
These are all more so lumped into the "deathcore" genre.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.