Well...debatably:
Evanescence (earlier stuff is better than newer stuff, especially since its more Amy Lee now than Evanescence)
Lacuna Coil
Opeth
...:sour:
To be quite honest this might lead to her being teased by people who aren't goth, and by goths who like to make fun of people for only dressing goth and not being goth...as per their definition of goth...

