I'm a 27 yr old male, Asian-American (from the east coast), that has been living in Taipei permanently for the past year, but have been visiting Taiwan every summer since I was 4.
I admin the (unofficial) Forumosa cycling club as well as the (unofficial) tennis meet-up group here on the forums. If you have interest in either cycling or tennis, feel free to give me a PM! I will add you to either LINE/FB group.
If you're not into either of those and looking for those hidden gems, small eats or places that don't show up on a tour, shoot me a PM.