I have TRICARE. It’s the insurance that the military uses, and if this an option for you, you should definitely, definitely look into it. TRICARE is the best insurance that I have EVER had, Ever.
Another insurance company that has earned a great reputation over the years is Blue Cross Blue Shield. They have a variety of different plans available, and the offer good coverage for an average rate (depending on your health of course).
I looked at your profile, and I see that you live in Pennsylvania. I have family in Patton, Johnstown, and Pittsburgh. You should consider the following link. You can click on your state to see the largest health insurance companies by state. Usually the larger the company, the smaller the premium. I trust this website.
For Pennsylvania: http://health.usnews.com/health-plans/pennsylvania
These are just a few suggestions =)
Happy insurance hunting! =)