Personally, I use https://github.com/kagisearch/smallweb/ to feed my search engine / crawler. It contains 30k + rss/atom feeds of indie web sites. Thx for sharing this and the other directories.
I recently built a Small Web Discovery feature for the WebLibre Android browser that unifies multiple sources (currently only Wander and Kagi Small Web). The feature is still very alpha, in the upcoming weeks I will look into adding more sources. Documentation here: https://docs.weblibre.eu/weblibre/small-web.html and there are some screenshots in this Wander issue: https://codeberg.org/susam/wander/issues/11
these are awesome. linking to all of them from III. i personally use Gossip's Web a lot (https://gossipsweb.net) to find new cool sites and wanted something similar but searchable. i also felt like i had a really good alliteration i couldnt waste