RSS Search
https://feedle.world/ feedle: Search and Discover Quality RSS Feeds from Thousands of Blogs and Podcasts A search engine for blogs and podcasts, where every search is an RSS feed. Very interesting feed aggregator. You can search any term and it returns results from all the feeds they have indexed.
The searches themselves are also RSS feeds, so you can subscribe to “topics”.
Perhaps I should integrate this to fika to help people discover new feeds? Once I do tag and topic extraction, we could automate this to add a bit of entropy and kickstart the recommendation flywheel.