@Jonathan Blanco
You have received a few good replies so far. For the most part, most lenders are going to be relatively close in cost assuming we are talking about a straight forward loan product, we all borrower from the same pool of money to make these loans.
If you are going to continue buying, you really want a lifelong mortgage advisor in your corner who will help structure loans in your best interest. We get paid the same whether you take a higher rate or buy down, but there are absolutely times when it makes more sense to do it one way or another. This is critical because depending on your future goals and what we think the market is going to do, we can structure everything to keep more money in your pocket for the next deal.
If you are in the Tampa area and plan on purchasing there, I highly suggest you connect with @Josh Green. Financing is important but your realtor will absolutely be the determining factor whether you purchase correctly or not.
Best of luck!