"God In An Alcove" is very ethereal without going too new age-y
"Bela Lugosi's Dead" is not just a goth masterpiece, but also a dub masterpiece.
Siouxsie and the Banshees are absolute geniuses. Siouxsie's voice, through it's many phases, has always been gorgeous (even in her solo song from 2015, "Love Crime", she's still excellent), the guitarists they chose are almost all amazing, Budgie's drumming is powerful, etc. Just some of their opuses are "Juju", "Kaleidoscope", "Peepshow", and "Hyaena".
The Creatures, Sioux's side project with Budgie. They left the post punk umbrella with the fantastic Anima Animus in 1999, but they fit the genre at first and are extremely unique and interesting.