Thanks for the response! I think Pixelfed would be a great addition, since it will probably be popular. I'm not so sure about BookWyrm. Its network is fairly healthy, and it's usually used as an alternative to Amazon's Goodreads, but it maybe one that is worth surveying the community about.
Looking forward to Fedecan's future!
It's only a 12 minute video, so I'd recommend watching it, but here's my (kinda long) summary if you prefer reading:
* An extensive analysis by an expert architect at Canadian Architect Magazine has also verified that the shutdown is not a safety requirement, and that the government's claimed repair costs are vastly overblown (https://www.canadianarchitect.com/the-true-cost-of-repairing-the-ontario-science-centre-is-much-much-less-than-what-infrastructure-ontario-has-been-saying-and-the-proof-is-in-its-own-documents/)