Completely agree with @Wolfiefan. you could go to local breed shows and see what you fancy there, nothing is better than seeing the parents of your prospective puppy.
KC are awful, dont place stock in litters solely because they are KC reg.
I’ve seen litters registered on their website with, variously, absolutely no health tests, pointless health tests, no checks on degree of inbreeding meaning grandparent to grandchild and even half sibling mating seen as absolutely AOK …
GRs are absolutely beset by health issues, particularly joint ones, so due diligence is essential. They’re also prone to cancers and higher inbreeding rates increases cancer risk.
the Facebook page mentioned upthread is good but even then, do your diligence and be careful about higher CoIs and the number of verifiable generations when considering risk regarding hip and elbow scores.