Learning Taiwanese at intermediate to advanced level

While learning Taiwanese resources are few and far between, advanced material for learning Taiwanese is even scarcer. Here are some of the best ways to learn more advanced Taiwanese Hokkien online.

Podcasts completely in Taiwanese

There are a number of podcasts that speak 100% are almost all Taiwanese Hokkien which are great for intermediate to advanced listening practice. I like this one for casual practice: 邊友愛講話pîng-iú ài kóng-uē. Although the audio is not too great at times.
Another good one is 台灣人台灣事, which has much better audio quality.

MOE material

Taiwan's Ministry of Education have some resources for learning Taiwanese. In particular this one is great with the advanced books having lots of advanced listening practice (click on the headings above the passage for the audio link): Beginner to Advanced Material for Taiwanese

This site

Start to learn intermediate Taiwanese Hokkien here. This site was created partly due to the lack of resources for learning intermediate Taiwanese online and provide some higher level vocabulary.

Youtube

Searching for learning Taiwanese on Youtube doesn't reveal much apart from the most basic content in English. However there are a number of channels using Taiwanese that appear when searching in Mandarin Chinese. 無事做巴士 this channel is great for getting listening practice and often has subtitles on their videos.