Here's a small selection of music within this sub-genre from some of the top artists and songs included in this over 700 track Spotify playlist:

Nightwish – Nemo
Nightwish – Wish I Had An Angel
Nightwish – Dark Chest Of Wonders
Nightwish – Planet Hell
Nightwish – Ghost Love Score
Nightwish – Last of the Wilds
Opeth – Harvest
Nightwish – Eva
Nightwish – Wishmaster
Opeth – The Drapery Falls
Samael – Slavocracy
Cradle Of Filth – Hallowed Be Thy Name
Therion – To Mega Therion
Moonspell – Night Eternal