If you are not joining a guided tour, here are a few videos you can watch beforehand about Taiwan for your reference! All these are based from the six-day itinerary I wrote the last time at post:

To Share: A Real-Life, Jump-Packed 6-Day Taipei – Hualien – Jiufen – Yehliu – Taipei Itinerary

Things you have to know before visiting Taiwan

Taiwan travel tips

Taiwan vacation travel guide. Note: This video is owned by Expedia.

Guide to Taroko Gorge

Guide to Jiufen

Yehliu Geopark Travel Guide

Maokong Night Market in Jeelung

Chiang Kai Shek Memorial Hall

Exciting Ximending Shopping

Sun-Yat Sen Memorial Hall

Taipei 101

National Palace Museum

Comparing Two Palace Museums

A Tour of the Shilin Night Market

Danshui

Beitou Hot Springs Guide

Amazing what Youtube has on offer, right? Good luck!