[Classic metal] - Iron Maiden, Judas Priest, Motorhead, Grim Reaper, Manilla Road, A Sound of Thunder, Artizan, Striker, Enforcer, Black Sabbath, Dio, Jorn, Slough Feg
[power metal] - Helloween, Iron Savior, Dream Evil, Triosphere, Kobra and the Lotus, Keldian, Lost Horizon, Iced Earth, Blind Guardian, Sanctuary, Rage, Cage, Jag Panzer, Steel Prophet, 3 Inches of Blood, Cellador, DragonForce, Neonfly, Echoes of Eternity, Morgana Lefay, Twisted Tower Dire
[death metal] - Death, Vader, Morbid Angel, Immolation, Septicflesh, Amon Amarth, The Black Dahlia Murder, Edge of Sanity, Bloodbath, Atheist, Bolt Thrower, Necrophagia
[black metal] - Immortal, Rotting Christ, Melechesh, Dissection, Sigh, Carach Angren, Emperor
[thrash metal] - Anthrax, Overkill, Death Angel, Megadeth, Exodus, Gama Bomb, Testament, Metallica, Slayer, Kreator, Nevermore, Revocation
[doom metal & stoner metal] - Pentagram, Candlemass, Trouble, Argus, Reverend Bizarre, Electric Wizard, The Sword, Fu Manchu, Clutch, Kyuss, Blood Ceremony, Avatarium
..that's all I've got for now! Trust me, there are many, MANY more I could recommend!! Yeah I get obsessed....apologies!! XD Might also wanna check out the Metal Music Archives! Great way to find out about other artists in the genres.
How has your week been?