I don't think we have a lot in common since almost none of the canons you've listed really appeal to me (Buffy's alright but I haven't watched it in yeaaaaaars and I'm more into anime than LA canons), but I'll throw some music recs your way since I recently recommended punk/gothy stuff to a friend recently and have a list ready:
The Birthday Massacre (synth-rock?), Sopor Aeternus & The Ensemble of Shadows (medieval-y darkwave, the vocalist is a German trans woman but a lot of her songs are in English), Jakalope (industrial/alternative rock), The Creepshow (psychobilly), Zombina and the Skeletones (deathrock), Switchblade Symphony (trip-hop/darkwave) Nightwish and Tarja (Finnish band but mostly English songs, symphonic metal. Tarja was I think the original singer until she left and started doing her own thing), Evanescence (lol), Rob Zombie (rock), Faithful Dawn (heavily-leaning electronic darkwave?), Paralitikos (Spanish deathrock/punk?), She Wants Revenge (more punk and darkwave than gothic), Tears for Fears (more synth-pop, they made the original "Mad World" song), Cindergarden (darkwave again), Eyaculación Post-Mortem (Spanish, like Paralitikos but leans more electronic IMO), Cocteau Twins (dream-pop/shoegaze, very beautiful but the lyrics are word salad-y, lol), My Bloody Valentine (dream-pop/shoegaze), Blutengel (darkwave, German with English and German songs), Parálisis Permanente (more Spanish deathrock/punk!), Bloodflowerz (gothic rock/metal), Echo & The Bunnymen (post-punk/alternative), Faith and the Muse (darkwave/gothic rock/ethereal), Forever Slave (Spanish symphonic metal in mostly English), Hungry Lucy (trip-hop/darkwave), Mad Marge and the Stonecutters (psychobilly), Murderland (horror punk), Shadow Reichenstein (horror punk/psychobilly), The Candy Spooky Theater (J-rock, definitely gives me the Halloween feels), Murder of My Sweet (Swedish symphonic metal, can't remember if they have any Swedish songs), The Young Werewolves (horror punk/psychobilly)... Depeche Mode omitted for obvious reasons, hahah.
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The Birthday Massacre (synth-rock?), Sopor Aeternus & The Ensemble of Shadows (medieval-y darkwave, the vocalist is a German trans woman but a lot of her songs are in English), Jakalope (industrial/alternative rock), The Creepshow (psychobilly), Zombina and the Skeletones (deathrock), Switchblade Symphony (trip-hop/darkwave) Nightwish and Tarja (Finnish band but mostly English songs, symphonic metal. Tarja was I think the original singer until she left and started doing her own thing), Evanescence (lol), Rob Zombie (rock), Faithful Dawn (heavily-leaning electronic darkwave?), Paralitikos (Spanish deathrock/punk?), She Wants Revenge (more punk and darkwave than gothic), Tears for Fears (more synth-pop, they made the original "Mad World" song), Cindergarden (darkwave again), Eyaculación Post-Mortem (Spanish, like Paralitikos but leans more electronic IMO), Cocteau Twins (dream-pop/shoegaze, very beautiful but the lyrics are word salad-y, lol), My Bloody Valentine (dream-pop/shoegaze), Blutengel (darkwave, German with English and German songs), Parálisis Permanente (more Spanish deathrock/punk!), Bloodflowerz (gothic rock/metal), Echo & The Bunnymen (post-punk/alternative), Faith and the Muse (darkwave/gothic rock/ethereal), Forever Slave (Spanish symphonic metal in mostly English), Hungry Lucy (trip-hop/darkwave), Mad Marge and the Stonecutters (psychobilly), Murderland (horror punk), Shadow Reichenstein (horror punk/psychobilly), The Candy Spooky Theater (J-rock, definitely gives me the Halloween feels), Murder of My Sweet (Swedish symphonic metal, can't remember if they have any Swedish songs), The Young Werewolves (horror punk/psychobilly)... Depeche Mode omitted for obvious reasons, hahah.