Mail order brides or whatever you call it there are services in Taiwan they will help you find a foreign wife. Saw an advertisement for a Vietnamese wife but there are also services to help find others like Ukrainian which is one of the more popular ones for lots of men seeking brides around the globe.
If its the low birthrate that is the issue, then the mail order brides should be sourced from the Philippines - loyal strict Catholics, follow the church doctrine that the only Birth Control acceptable is Coitus Interruptus !!!
Do not post specific services that can be seen as advertisements!
According to Chapter 9 Article 58 of the Immigration Act, “No person shall disseminate, broadcast or publish advertisements of transnational marriage agencies through advertising, publication, broadcast, television, electronic signaling, internet or other means that can make the advertisements publicly known.” A violation of this law can result in a fine of between NT$100,000 and NT$500,000