Losing employer insurance, where should I look?

I have 3 weeks left on my current insurance and I am comparing options. The COBRA notice arrived with a very high price. How fast did coverage start?

A free navigator at a community health centre walked me through my options. It took an hour and saved me a lot of guessing.

Losing job-based coverage usually opens a special enrolment window, so check the deadline on the official marketplace site. I missed it by a day once and regretted it.