The AKC is simply a registry for purebred dogs, just becasue a breeder is listed there does not mean the dogs are great dogs. However: if a breeder signs the breeder's code of ethics there is some indication they are training, titling and health testing the breeding stock.
I used to get jazzed up about parents being titled. IMHO I do not think it is required. I DO think it is required that there be some indication of the dogs ability to work and some indication of soundness, yes titles on parents do that but so do titles on grandparents. If there are 5 generations with no title in sight I would say walk away really fast. It is hoped that these kennels are working and training the dogs and seeking some titles.
The Daily kennel is breeding a Theishof female. Surely Hiedi Theis sold her this dog for this purpose? I hope so anyway. Although parents are not titled I like thse two dogs being bred.
The second link, Canaan, is American showlines and they show in conformation. If you want an American showline, they look fine to me.
Salerno is a West German Showline breeder. These dogs look okay too.
You said you wanted a showline for a family companion, any of these would probably be okay. Personally, I prefer the West Germn Showline over the American but it is a personal choice. I have both American and German, I started with American and switched to German showlines. My Kayos is American, Havoc and Lydi are German.
Many on the board prefer the working line dogs and are trying to steer you there. You get what you want and what will work for you. As I said any of those breeders would be adequate for what you are looking for for your family. There are many working line dogs that might work out in your family too.
As for showlines not being able to work---- phooey on that. I do not do Schutzhund becasue I don't like it, I have tried it with Havoc and he surely has the ability and both of his parents are titled at 2 and 3 level. I have been doing obedience and agility and tracking with showlines both American and German for almost 30 years.
Good luck and show us pictures when you get your baby.
URO3,UCD Aleshanee Windridge "Kayos" CD,TDX,RE,CGC,HIC,TC
PTE,AG2,AN,URO3,UCD Xtra!Xtra! V TeMar "Havoc" CDX,GN,RE,CGC,HIC,TC,BH
UACH,URO1 Tidmores Rising Star Lydia "Mayhem" CD,BN,AX,OAJ,NF,RE,HT,TC,CGC,
Lucky, Wolf, Max