Most overseas hires start to search their home after they relocated to Taiwan. If your time permits, you can also come to Taiwan and look for it in advance.
Most overseas hires reside in apartments near the HSR(High Speed Rail) Hsinchu Station or the area near by Costco. Rental of properties vary from one location to another, depending on popularity and the age of the buildings. Furnished properties are popular in recent years and normally include basic furniture and appliances.
It is customary for landlords to require the equivalent of two months’ rent as a security deposit and one month rent in advance. In addition, you will pay a one-time commission to the agent who helps you find your home. The minimum length of a tenancy agreement is usually one year. Rental normally does not include any utilities and/or management fee.
Here is a list of rental websites for your reference. You can do home search on your own or contact your HR Specialist for assistance.