If this helps: there are many dog charities in Spain as unfortunately there are a lot of abandoned and mistreated dogs and feeling can run "high", particularly in the ex-pat community when people want and do buy dogs outside the charity system....
My wife works at one such and we had a puppy from them about 5 weeks ago, there was so much choice of breed, mixed breed and sizes that we found it difficult to choose but I am absolutely sure you will find what you are looking for at one the the charities, it will also be one less in the system and you will be helping out in many ways, including financially.
No pressure, just making you aware of the situation and wish you good luck.