Digging into my gothy, artsy past:
Dead Can Dance
Cocteau Twins
Bel Canto
Madredeus
Loreena McKennit
If you end up liking some of this goth crap
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, then you might check out the "
This Mortal Coil" project which was a compilation project for 4AD (the "goth label" from the 80's).
I don't have as many male vocals that I consider beautiful. Jeff Buckley (sometimes).
And if you want to hear some amazing vocals:
Basso Profundo from Old Russia
Huun-Huur-Tu