Hi! Looking forward to more answers here, but just FYI, there have been a couple of previous threads on this topic, so check out the answers there:

• How did the 'Gothic' go from referring to an ethnicity to a description of overtly nihilist teenagers? - featuring /u/x--BANKS--x

• Goths and The Goths - featuring /u/bitparity; also has a links to a few more

These posts have both been archived, so if you have follow-up questions for any of the users therein, just ask here and tag their username