Your opinions on good dog breeds please

I've had black labs for 16 years now. They are great with the kids, on guard around the house without being asked and really watch my family. Mine are large for labs, the male is about 120 and the female is 83. No one walks up to the door easily. I would say stay away from them if you don't like to vacuum or don't have a lot of room for them to run around. They need lots of attention.