Not sure what to write here... I sing alot, used to sing in a band for a short while, here's some of it if you care to listen: https://www.youtube.com/watch?v=eckOCHlWG5s
I'll just write some of what my ears prefer to pay attention to and i'll add other details later:
Adrian von Ziegler (Current favourite, and instrumental music in the same genre)
Swallow the Sun
Chelsea Wolfe
Doom:Vs
The Project Hate
Portal
Evergrey
Trees of Eternity
Vampire
Elend
Dark Sanctuary
The Gathering
:LOR3L3I:
Evoken
Opeth
Summoning
Tristania
Pain
My Dying Bride
Coldworld
Emperor
Burzum
Alcest
Moonspell
Profanum
Electric Wizard
Dead Can Dance
Ava Inferi
Funeral
Remembrance
And many soundtracks of course...
The list is way too long and more artists/bands are always being added...