You need to find the right breeder.
Before telling them what YOU want, ask what they breed for: Show, Work or Companion. Dont tell them what you want, or they will say they breed for that.
You want someone that breeds for companion/pet and or Work. Show dogs can have a LOT of issues (physical and mental). Work dogs are usually a little higher strung but have a drive, and this could be used towards training. There are a few GSD breeders in our area that do breed for the sole purpose of companion dogs - and I tell ya, they are WONDERFUL dogs.
I would get a Shep hands down over any other breed IF I had a maid to clean up to constant shedding!
Also, require PennHip rads or OFA (less discriminitive) of the hips and potentially OFA of the elbows on BOTH sets of parents. I believe good responsible breeders will allow their breeding stock to be in the open optional database withPennHip to prove their breeding stock is of good quality!
In general, show dog breeders prefer the OFA because its much easier to get a pass (there is no distraction of the hips to show laxity, its a one shot test). Where as PennHip, several views are taken and measured…
I do prepurchases for police dog screenings. Most are sheps or malies. One european Shep we passed PennHip’d in the top 10 percentile. He came from Belgium (and was $15,000). We failed 4 that were North American bred. Its amazing how we have bred bad hips into these dogs. Sad