Esoteric
Enslaved
Weakling
Akercocke
Kayo Dot
Neurosis
Isis
Cult Of Luna
Callisto
Emeperor
Negură Bunget
Deathspell Omega
Blut Aus Nord
Primordial
Mastodon
Thee Maldoror Kollective
Arcturus
Solefald
Manes
Nachtmystium
Shining (the swedish band)
The Axis of Perdition
Vehementer Nos
Wolves In The Throne Room
Cynic
Lykathea Aflame
In the Woods...
Genghis Tron
Thorns
Fuck it.. That's shitloads of artists for you to be checking out - most likely won't like all or many of them.. But hey, you said you were bored with metal.. And these guys may help spark something..
Maybe you should look outside of the metal genre altogether if you're bored with it? It's not a crime to have a taste broader than metal and 'rock'.