Music and clubs wise? Punk yes. Goth, industrial and other dark: Almost non-existent I’m afraid. Darkest I’ve seen is death and other extreme metal, very nice bands and fans. I’d love to be proven wrong though, I’m missing it.
Clothing wise: luckily a lot of dark-ish trends, styles and accessories seem to be quite popular here. Some BDSMish things like leather chokers with rings even. Mostly seen as fashionable though I guess, not really connected to any dark music or lifestyle.
We’ll, once you’re here we’re at least 2 in Taipei interested in dark music. Maybe the start of a wonderful subculture trend here