I really like listening to drone metal, stuff like
Sunn O))), Boris, Earth are really cool but it is not for everyone I guess.
Burzum makes really good ambient music as well, if you liked the newer albums I can definitely suggest
Alcest,it is not really a pagan-folk group, but it is a popular group you might have heard of it.
Amesoeurs makes a little softer music but I think they are great as well.
Les Discrets are similar to Amesoeurs as well. That was a lot of French bands for someone who is not from France.
Woods of Ypres really has some bangers as well "I Was Buried In Mount Pleasant Cemetery" and "Traveling Alone" are my favourites.
One Finnish group that I'm listening is called
Tenhi, I don't really understand the lyrics but they are really nice songs slow, soft. My favourite is "Pojan Kiiski" I think the song is about a boy and his fish but I dunno, it is cool though.
Not every song in my playlist is my favourite best amazing song of all time ofc, my playlist mostly consists of ambient, blackgaze, ds black metal. Other than that I really like
John Frusciante's solo work, like all of them. With his other group
Ataxia, alternative rock, really cool songs there.
In order for me to listen any music, it needs a distorted or overdriven guitar and that's pretty much all it needs.