Given that 95% of people out there have no idea how their health insurance works or even what their deductible is, I don't think I would rely on their advice for what a "reasonable" cost is. You need the help of an independent agent who knows your market. There's no cost to have the help of an independent agent, they are paid by the insurance company and the rates are exactly the same as if you bought directly from the company.
Disclaimer - I am an independent insurance agent. If the above message contains insurance-related content, it is NOT intended as advice, and may not be accurate, applicable or sufficient depending on specific circumstances. Don't rely on it for any purpose. I do encourage you to consult an independent agent for insurance-related advice if you have a question that is specific in nature.