Best place to compare medical insurance rates?

Hi my fine Houston people,

Wife might be losing her job and she is 8 months preggo. Great timing… If i add her and the child (our first child) to my insurance, it's unbelievably expensive ($1200/month). It's probably cheaper for me to stay on my plan and have her and maybe the child go onto a separate plan (or add child to mine, and have my wife on her own plan). Is there a good website i can go to and browse/compare medical insurance rates and get an idea of costs?

I know of health Sherpa, but any other's specifically for houston/texas?

Thank you!