Most Canadians would have to leave if they didn’t have another job anyway for visa reasons. Those 60 days would be difficult though. I’m assuming non-US citizens or PRs can’t use COBRA?
Partially. Depending on the Visa, Canadians need to leave within n days. However, it's extremely easy to re-enter as a visitor (B-2) and stay for 6 months.
Canadians are eligible for COBRA if they've earned income within the year. https://theea.org/wp-content/uploads/2014/08/Whenisanemploye...