Welcome to you. All of those breeders are good breeders.
Most GSD's require a fair amount of exercise and training but also settle well if they been given a chance to blow off steam through exercise.
If you want a more laid back GSD let the breeder know what your expectations are and they will do the best they can to match you with the right pup.
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