My fourth most often requested search query is taipei sauna oil massage and since I have little knowledge about this particular topic let me please recommend you to check out the Carlton Spa here in Hsinchu where a friendly masseuse named Susan will stretch your body into submission.
Edit: perhaps the articles below might help.
Does anyone know of a GOOD massage therapist in the Taipei area?
Where can you find escorts in Taipei?
WCIF Massage Therapist
Non-Sexual…hotel delivery massage
Men’s spa in Taipei?