I am sorry for the trouble you have encountered trying to adopt. It's very sad.
As for getting a puppy from a breeder. I would plan on getting 1 puppy at a time. Don't go in to it wanting 2 puppies at the same time. Many good breeders will not even do that. It makes it much harder to bond with each dog as an individual.
There is nothing wrong with color preference.
Asking a breeder to sell you a dog that adheres to very certain behaviors. Well that's going to turn any breeder off, why? Because it's your job as the owner to teach what you want. The best a breeder can do us give you a general personality, activity and drive level. That's it.
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