I am doing this in Taipei right now. The living costs are low and there is a thriving intellectual community, but there is definitely a language barrier. Most Taiwanese can speak enough English to be friendly and helpful (which they are), but not enough to have intellectual conversations. If you are willing to tolerate the language barrier and put in the time to find the people who can converse intellectually in Engl…
On the other hand, if you live there, it might be necessary to learn Chinese if you don't want to feel like you're living in a bubble in the long run.