Resources for discovery across the open social web/fediverse

This is a more focused revision of a post I made a few months ago, with an aim to help with discovery across the fediverse.

Searching and Following methods
This will vary across software, and may change as it changes, so take note of when this was written (end of March 2025).

By default, ActivityPub sites don't know of other, remote sites. Any remote site stuff you're seeing is because somehow the site your on was made aware of the other's stuff. Typically this may be that a user learns of a remote site's stuff in some way and decides to follow from their home site by looking it up via their site's search then subscribing/following.

All of the above format-specific links I've provided above are means of finding some remote sites' stuff to follow on one's home site. Below are some additional tools and methods to further help when using some of these different sites.

If you're aware of other resources, tools, or methods that I've not mentioned here, please mention them in the comments! There's undoubtedly more to add that I've not come across.