I built this for myself some years ago and used it a lot to find many interesting niche subreddits. Today I expanded it to also help myself and others find interesting niche communities across the Lemmyverse!

There is a longer explanation here from an older article, but basically:

• You give this a link that you found interesting
• It will (try to) find everywhere it has been shared on the Lemmyverse (and other websites)
• It will show you all comments from everywhere it’s been shared on a single page
• You can do all the regular stuff like filter, sort, isolate etc.

One thing I find myself doing very often is hitting “toggle sources” on the top banner; this shows me everywhere the link has been shared and commented on, and if I see a community I’m not familiar with, I’ll isolate the comments from that source and have a look through to see if it’s a community I’d like to engage with.

There are also browser extensions and an iOS shortcut available.

You can check out an example from a post that just hit “Hot” on lemmy.world here!

I hope this helps people find interesting, engaging and fulfilling communities in this next chapter of the internet! 🚀