ME TOO!! My DH says no. He does not like their skinny build. I love them and would have 10 if I could. My last cat has crossed the rainbow bridge and I purchased a home and fenced in the 2crs in 2021 I am getting a greyhound next. I don’t care what DH says. I used to work at a motel in Rehoboth Beach De and every Columbus day weekend was the “Greyhound Reach the Beach” social event. It was the only time all of the hotels/motels would be dog friendly (this was in the late 1990-2000). It was so much fun to watch a hundred or so dogs gather on the beach and have fun!!
Regarding the OP question.
I have dogs as family members, they do not need to do a job or be involved with sport, but if I had time I would do agility / rally / Fly ball, OB and scent work. (meaning I do not focus on purpose bred).
Border Collies are my favorite and have had one (broder / lab cross) and am on my second one. She will do agilty and may be get into scent work too. She starts puppy classes in 2 weeks. The lab in them tends to keep the coat shorter. IME.
Sight hounds are at the top of my list too. I have one and have worked with Ridgebacks, they are great family dogs that are game for most things you throw at them.
This is hard, its like picking a favorite kid.
And I would add Blackmouth Curs to the list too. I clearly like a ‘best buddy’ type of dog.
My focus usually is; short hair, (no double coats) med to large size, loves a ball, goofy type of dog. Mutts, purebred, purpose bred with working lines, etc does not matter to me.
I am happiest with a dog, a tennis ball, and a lovely evening.