When talking about cities, and advocating for the kind of city I want to see, I frequently lean on some of the same resources.
To make my life easier, I've collected them into a blog post: https://ghost.preinheimer.com/resources-i-lean-on-when-talking-about-cities/
Maybe you'd find some of them interesting?
A thing I really miss on here that I got a lot of on the bird site is snarky political commentary on local, Toronto, and provincial issues and events. There's some of that on here, but there are a ton of people I miss. And I'm much less well-informed because of it.