I have a picture of Edie like this. She wasn't a broodie but she was a character.
I've had a lot of broodies. My spec sheet eventually boiled down to (age) 10+, lots of litters, lots of puppies. I find broodies to be incredibly accommodating of their humans, perhaps because they've had so much handling. They also tend to remain playful as long as they're physically capable, perhaps because they spend months with their puppies. The more litters and puppies they've had, the sweeter they are. My oldest girl Opal (13+) isn't able to run any more, but she's incredibly social with both people and dogs, and bounces around like a youngster when she greets either.