I seldom use it, but for filtering https://hn.algolia.com https://hn.algolia.com does a good job. On the other hand, I wonder if there's some AI tool for taggi

I seldom use it, but for filtering https://hn.algolia.com https://hn.algolia.com does a good job. On the other hand, I wonder if there's some AI tool for tagging posts and building custom feeds.