Great idea - remote work is probably one of the fastest growing contributors to our membership overall, as well as the diversity of our membership (more people working in more kinds of jobs that happen to be remote!)
https://weworkremotely.com is another job board (and totally unrelated to the McCoworking chain), but they also have a nice set of resources including a remote companies list (based on who is posting jobs), and even things like a job description template for remote positions.
A few other popular resources I've found, again, mostly job boards, include:
There are a few companies like Buffer, Zapier, and Invision who are all "remote first" companies publish experience and expertise on helping build remote teams. This is an area that I feel strongly that coworking operators could help with, since many companies do not have the internal resources to build healthy remote teams and perhaps part of the playbook can become supporting remote workers and their employers in creating sustainable remote positions.
Lots to explore here, I love this conversation!