Will it be your first dog or just your first as a family?
For a first time owner, Toy breeds are often a good place to start (they’re not all miniature, like Chihuahuas). Mainly because they were developed to be companions first and foremost and not to work all day. That said, they can have a tendency to separation anxiety and toilet training can take a bit longer with some of them. Socialisation and training is just as important as with larger breeds, but often overlooked, hence some toy breeds getting a bad rep, as they have often been treated like spoiled children and/or overprotected. A well socialised, well trained toy breed is usually a delightful companion, but you do have to put the work in the same as any other breed.
Something like a Bichon Frise would be a good match, if you are ok with the coat care.
Gun dogs are popular with first time owners, as people see them as biddable and trainable, but you have to consider working vs show lines and that adolescence can be er, interesting, with some. The beautiful, biddable ones people admire are usually the result of lots of patience and consistent training, as well as coming from good lines.
I also agree, well bred Staffies make lovely family pets.
For me, personally, when we had young dcs, the ideal pup turned out to be a Lurcher. He ended up with us as a rescue pup when we weren’t actually wanting another dog, as we already had two, plus two dcs under the age of four, but he was amazing from day one and still is at almost 16. He’s also the bff of my ds who was 18 months old when he arrived as a pup. He was barely nippy, easy to toilet train, has always had decent recall and although he loves his walks, he’s a lazy, snoozy boy the rest of the time. Being a mixed breed though, with Lurchers it can very much depend on the mix, as well of course as the character of the individual dog, but Lurcher specific rescues like EGLR and Lurcher Link are great at making good matches and offering back up and support. Pups are occasionally born in the rescue’s care and then have the advantage of a great start in life. My boy wasn’t, he was bred to be sold, but given to the rescue when they couldn’t find enough buyers. He was in a fantastic foster though and I honestly believe their hard work and dedication is why he was so good from the get go.