Your opinions on good dog breeds please

boston terrier very intelligent, well mannered and only bark when they need too. i own 3 and my oldest is the best dog ive ever owned. all i need is for them to let me know whats going on outside and i take care of it. lived in country all my life had a few intruders, nothing got gone. its been my experience thieves dont like any kind of noise/attention, and are gutless thats why they steal . but check out local shelter there are plenty of dogs looking for work. i believe a heinz 57 was mentioned. thats just a mix like the rest of us. i used to have papers, but give that up. good luck and remember it is a commitment.