You can take the advice of the breeder as to what breed would be ideal for you. There are plenty of grown up dogs waiting for a loving home. Adopting an adult dog or a senior dog from a shelter can be highly rewarding. For one thing, you get to know the final size and appearance of the dog you’re bringing home.Where to take dogs for adoption?
Another place where you can adopt a dog in Barcelona is la Lliga per la protecció d'animals i plantes Barcelona. They also have lots of dogs up for adoption that you can see online. As is the case with CAACB, this is a large community of volunteers and partners involved in the welfare of dogs and cats.