I won't put them in order because it's too difficult, and I'll leave off Iced Earth who used to be my number 2, but I've let go of them after Jon's actions at the Capitol.
Billy Talent
Blind Guardian
Bullet For My Valentine (though only half their output is to my liking. One of the most inconsistent bands ever)
Cradle Of Filth
Die Ärzte
Evergrey
Farin Urlaub (Racing Team)
Trivium
Versengold
Vasilis Papakonstantinou (Technically not a band, but he's always supported by a band so it still counts
)
There are other bands I used to love but don't listen to much nowadays (Alestorm, Sabaton, Gloryhammer, Rotting Christ, In Flames, Schandmaul) or bands where I like what I've heard so far, but haven't taken the time to properly dive into their repertoire (Epica, Devin Townsend, Polyphia). Also, the first four Taylor Swift albums are fun, didn't like how poppy the follow ups were, but apparently her most recent albums (Folklore and something else) are great, so I'll have to take a listen to those at some point.
I also listen to a ton of video game soundtracks, so it would be much easier for me to list 10 composers, than it is to list bands lol