Unfortunately there are many excellent dogs out there that never get close to a title and some people won't even give them a second glance. A lot depends on your situation. If you have lots of friends that can spread the word for you and get the word out that your dog is a top notch retriever then you might do OK selling the pups. If not then it's an iffy proposition.
For titles there are AKC and UKC (my preference) hunting retriever trials. Do a web search for the respective clubs and find a local retriever club and get involved. AKC hunting retriever leans more toward the field trialing; UKC is much closer to hunting situations.
Good luck!
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