Food for thought...
It sounds like you love your current mix breed dog. As many of us do, we tend to want another just like our favorite or heart dog.
I am a breeder of Goldens and here is what I will say, it just doesn’t happen that way even within the stabilized traits of a breed with hundreds of years of consistency bred in. I currently have 5 dogs that I can trace back to the founder of the breed. A pair (mom and a daughter) and then trio (a grandma, mom and daughter). Even within these dogs that are not only the same throughly established breed but also family, they are far from the same dog. Yes they are all wonderfully Golden but not identical. Had I had that as the ideal (the dogs I bred would be identical), I would be sorely disappointed.
Now take two random breeds from very different backgrounds (hunting and working in this case) to make puppies and that variation will not just be in physical traits but in temperament and behavior as well.
Add to this the fact that purposeful mix breeders have to source their dogs from risky places such as back yard breeders, pet stores and commercial kennels (mills), these dogs have a high risk for health problems.
The people purposely doing this want money and rarely care about anything other than profit. They get people interested in a fake breed (creating a breed is a process that takes decades, with very specific steps) with a cute marketing name, misrepresentation of facts and usually slick websites. Take time to educate yourself through trusted sources, not random websites. AKC, National breed clubs (
Golden Retriever Club of America), and OFA are a couple of good ones.
I would recommend looking at your current mix breed dog and make a list of the traits that make this dog so great for you and your family. Then compare this list to breed descriptions on AKC or National clubs for each breed like the GRCA. Once you find a match, find a responsible preservation breeder in that breed that competes the appropriate health certifications and perhaps competes in conformation, obedience, hunt or any other breed specific discipline.