I'm a group of one.. if that counts for anything. Main problem I have is finding grounds in the area without either being chased off or some kid taking off with one of your blind bumpers while switching out dogs.
I train in Weatherford which is not close to your desired locations. I don't think you provided very much information for someone (s) to volunteer to take you under their wing. My suggestions:
1. Provide some information about yourself and your dog and goals.
2. Join a local retriever club to meet folks. There are several: Cowtown, Big D and Lone Star.
3. Take what you can get (as to location) and don't be so selective about location. Get out and meet some people.
4. Buy a good training program (dvd) to follow. There are three good ones often mentioned on this site: Total Retriever Training 2 edition, Smartworks and Fowl Dogs.
5. Being in a training group is great and they can help you through tough issues but it is no subsitute for trying to follow a program.
6. What can you offer the group? Are you someone that will show up early to help set up, stay late to help pick up and throw birds for others?