Ah alright! Trivium is pretty good! :-) I listen to a lot of stuff tbh, and I'm most fan of epic works, like Audiomachine and Two Steps from Hell. But when it comes to DnB/dubstep (or some sub-genre of sorts?), I really like Noisia! :-)

if you like progressive death metal here is some opeth for you: https://www.youtube.com/watch?v=nIo3lpXrc5A

Not really folk metal, just has a flute.

I ain't got a clue what "Progressive/Death Metal" means; I'd say that I "just listen to metal" and don't pay heed to classifications and sub-genres.

Maybe this: https://youtu.be/LewUgNvsfWQ ?

Or this: https://youtu.be/IG81buCkhC4 ?

Or https://youtu.be/QuyUiI86kHA ?

Or https://youtu.be/BJWPR6Gyd3M ?

Or https://youtu.be/v7tkE_w04CQ ?

I've got more, but I'll close with https://youtu.be/s4DCBxgwLJ8 (which I don't like that much but it snuck into my playlist).