Some pointers for Ragnaris, starting from Love Spirals Downwards.
Often accused of being an LSD tribute band, but they took things in a little different direction:
"Deserted and Desolate" by Autumn's Grey Solace
One of my favorite bands:
"Hurricanes" by Siddal
Something from the Slowdive branch of the genre-
"Lake of Doubts" by Malory
While I favor their later work, this probably fits the target better-
"Charity" by An April March (that "An" is important, not the same artist as April March)
Perhaps something a little more obscure-
"tiger tiger" by Hinterland