You need a visa for Saudi Arabia if you have a Taiwanese passport
Visa options for Saudi Arabia
Electronic visitor visa
Travelers need a visa to visit Saudi Arabia. The Ministry of Hajj and Umrah has announced that travelers visiting Saudi Arabia for Umrah can enter until April 13, 2025, and must exit by April 29, 2025. Travelers can re-enter for Umrah from June 10, 2025, onwards. This policy only applies to travelers visiting Saudi Arabia for Umrah. An eVisa is the fastest and easiest way of obtaining a visa for Saudi Arabia because travelers can submit their applications and supporting documents online. Once the application is approved, travelers receive their eVisa confirmation electronically.
This is not offered by sherpa°.
Apply on the government site.