I don’t know if a forum like this is the right place for project sharing. It would not be very hard to make such a category, or an faq article. Entry for https://www.kicad.org/made-with-kicad/ is a bit high, and I consider that a good thing. It’s a nice place for “flagship” projects. For “generic” projects there is: KiCad Project Explorer It currently (2024-07-16) finds 29417 KiCad related Repositories (Can be projects, plugins, libraries etc), and it has a search system. There are also other sites which have many KiCad projects (although not KiCad only)
https://hackaday.io/discover
Elektor - Learn, Design & Share electronics | Elektor Magazine
Several PCB manufacturers also collect projects,
- OSH Park ~ Shared Projects
- PCBWay Community:Your Home for PCB,Electrical Engineering & Electronics Community
- https://community.aisler.net/ (Not many here, but Aisler is a very big KiCad sponsor, and thus also worth mentioning).
And of course also other EDA suites.
And someone is also working on a (sort of) equivalent for this for KiCad:
And there are more similar sources. These are just the ones I could remember in a few minutes. Sometimes I wonder whether making a list of (KiCad) project sources is useful. Limiting it to KiCad only is not a good Idea. Projects are quite easily convertible into KiCad, and I would expect that over time importers for more different EDA suites will be added to KiCad.