Robert, 
 
Do you have a local butcher shop, or a higher-end health food store in your town? These options often turn out to be a bit more expensive than the local grocery, but allow you more selection for pure, unprocessed foods.
At your local grocery store, most packaging will tell you where and how the meat was grown/farmed. If it’s packaged from the butcher department at your local grocery store, stop by and speak to the butcher about what you are looking for. He or she can help to lead you in the right direction, or possibly make suggestions based on what the store carries. Be sure to explain that you need grass fed, free-range, meat, and wild-caught fish. The more specific you are, the more they will be able to help you. 
I personally like to shop at higher-end, health focused grocery stores. I find that the meat and seafood there is more clearly labeled. I’m able to tell if it was farm-raised, wild caught, etc. If this is an option for you, it’s an easy one. 
If you live in a city, you may even have grocery delivery available to you. This will allow you to order whatever you need from specific stores, and have it all delivered to your home. I get my meats from one place, my veggies from another, and my basics from a third. It’s quick and easy, and allows me to get the best selection for my money!