Hope youre not sick of me?

Hello forum friends, I will be arriving May 1st for a first six month trial in Punta Cana and have since January 1st  first started to finalize what I consider most important questions. I have had nothing but great advice from this group so in regards to pets;

After the devastating loss of my Bichon Frise,, Mikey Charles, last August, I put off mostly for  emotional reasons getting a new puppy but knew that I would likely get a Maltipoo which looks very much like the Bichon but will be likely 1/3 the size. I had already done my homework on the likelihood of obtaining the puppy last fall and bringing him with me on my initial stay in Punta Cana. I actually chose my condominium based on finding an owner who would allow the small dog vs a condo I liked a little more.  However since I will be coming to a new country, finding my way around etc, I decided that I would likely wait until the second half of my trip and pick up my new puppy sometime in late July when I travel back home to Indiana.   it will be a rush, having only 3 weeks, to pick up the puppy and get him certified and the shots, especially for rabies done in time to have the puppy travel certificate  yet it can be done. Also with a maximum adult weight of 5 to 6 pounds, he will easily be allowed on board with me.
When reconnecting with my landlord / condo owner, he actually suggested that I might purchase the puppy in the DR  specifically somewhere near Punta Cana so that the puppy is used to the weather. I'm not sure how important that is but, it seemed to be a suggestion worth trying out, especially knowing that there is a veterinarian within a block and a half from where I will be staying.

trying to Google search for Pet breeders or pet stores that might have access to such things has been A complete disaster for me, although it is certain that Chihuahuas, Pit Bulls and Pugs seem quite available.  so I wonder based on my needs and the situation, if anyone could recommend the best way to first find the right breed, and if indeed you agree or have thoughts on purchasing in the Dominican Republic is the wise choice. Secondly, what is name if you know of any website or organization with a website where I can start searching for breeders of specific breeds of puppy. Probably not rocket science and I suppose using the Spanish version of Google might be better but as usual, I am likely to get an answer from those on this forum!
thanks to anyone who can help,
Leslie