Sigh(experimental black metal), Samael(industrial black metal), Black Death(heavy metal), Orange Goblin(stoner rock/stoner metal), Helheim(black metal), Be Persectuted(depressive black metal), Nocturnal Depression(depressive black metal/normal black metal), Coldworld(the black metal band, not the hardcoe punk band), Hocico(industrial), Aganoize(industrial), Flesh Field(industrial), Clock DVA(industrial), Pentagram(the doom metal band), Doro, King's X, Galactic Cowboys, Saviour Machine(Opera vocals in a light form of metal/rock), The Meteors(Psychobilly band), I Shalt Become(atmospheric black metal), Phleblotimized(experimental death metal), Ease Of Disgust(deathcore), Speedwolf(thrash metal), Decrepit Birth(technical death metal), Black Widow(psychedelic rock), Saetia(screamo from before it became a generic term for post-hardcoe), Lonewolf, Alchemist(Australian death metal band), Arcana XXII(Namibian heavy metal band), Chthonic(Taiwanese extreme metal band), Mortification's earlier albums such as Scrolls of the Megilloth, and Klaus Nomi.
I also highly recommend Ceremonial Castings if anyone happens to like black metal at all. Glen Kaiser and Mark Lanegan are good blues musicians. Highly recommend Nick Cave's music in general. Screaming Trees is a great grunge band. Circle of Dust is a good 90's electronic rock/electronic and sort of industrial band.