Losing employer insurance, where should I look? - what worked for you?

My family's coverage ended with the layoff and we have a prescription we cannot skip. I am in Chicago, in case local advice matters. I think my income this year might qualify for a subsidy. What did you choose and how was the process?

Thanks for writing this out. I went through something close to it 12 months ago, and it got easier once I kept a simple log of every call and form.