Probably this thread can help a bit
Do you have any skills that you think may help you get a skilled job in Taiwan? A work related TARC may also be an option.
Or if you have the resources, starting a business/investment, that also gets you a TARC.
Once you have a TARC, in many cases, you may move on to HHR after a period of residency. (Some exceptions such as a student and domestic work apply)