After living alongside one dog for a while you have come to a decision to introduce a second into the family.
When you have selected the dog, introduced him to your existing pet and offered him a place in your home you're going to need to deal with the logistical side of bringing him into your folks. This experience will be upsetting for everyone so must be approached and carried out in a positive way.
The first and most important thing is that your current dog should not be hurt or in peril in any way. The dogs should have recently met before a home is offered. No strain should be obvious and the first meeting should be on neutral ground. The dogs should be observed conscientiously and their body language monitored. Positive interaction is critical between 2 dogs that are going to live together.
The nicest thing to do is take them both for a walk before bringing them into the home together. The home should have just been prepared by the removal of any resources that might cause conflict. Food and toys should be removed from all areas initially. Dependent on how well the dogs get on toys can be reintroduced very quickly and quietly. It's miles better to have a massive choice of toys than one; a single toy can be accepted as extraordinarily dear to a dog that's inclined to resource guard.
Research and preparation is how to choose a dog that will successfully become your second family pet. Observation and further research will enable you to manage a positive settling in period.
It is very important to consider your own behavior towards the dogs. Remember that you're also considered a resource. It'll be natural to stress about your existing pet but don't leave either dog out of interactions. Some new dogs benefit from being left alone to settle and join in silently, others wish to interact with you. To stop stress developing it is important that you treat both dogs, when they ask for attention, in exactly the same way.
For more great information on how to choose a dog, or if you would like to know more about dog training in general, please feel free to visit the Dog Trick Academy.