I’m creating this thread to attempt to compile a list of metal bands that play in E standard using six string guitars. Feel free to add more that I forgot or don’t know about.
Emperor (Prometheus has seven string)
edit: I left out a lot of black metal bands because most of them play in E especially the Norwegian ones.
Black Sabbath - E standard on first two albums, C# until Ozzy left and then Eb.
Celtic Frost - Monotheist is in B
Bathory - early albums
Agalloch - Ashes Against the Grain and onward are in D.
Croner - first three albums
Nightwish - until Over the Hills and Far Away EP then D.
Pantera - Cowboys From Hell sporadically afterwards
Judas Priest - until Painkiller
Metallica - Load, Reload, St. Anger feature alternate tunings.
Megadeth - some 90s albums are in Eb. Dystopia onwards in D.
Anthrax - 80s albums
Slayer - Show No Mercy Eb afterwards