In reply to Chris Hardie.

I think it was the first one that had brought me to it and I'd already bookmarked the third, but I'm glad to have the other missing piece now. Thank you!

I wish there were more little aggregation/discovery-based independent sites like this on the open web. I'll add your example to the IndieWeb discovery page, and maybe it will inspire others. It also reminds me that I need to look at sources like Patch again and see if Nextdoor.com has feeds, though they probably don't provide much/any filtering.