Embrace it.

Tourism is the worst.

If you have a nice original trendy place you will rent well ad PR has a strong internal tourism plus the tourist visiting the island.

For Alaska, it would be during the summer for the tourism season.

Basically anything with near year-round occupancy and driven by tourism will be good. 

Bacalar and Chetumal are also near the Belize border and get quite a bit of tourism but little has been developed. 

I would agree that if you're looking for short term rentals in South West Florida, you want to stay in the areas where that tourism and revenue from the short term feeds the local economy.

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Go somewhere where they want you to be. very small towns with very large tourism.

Entire Asia and Europe have no cash-positive properties in their economy.With this knowledge in mind, now look at the same property that is breaking even in your backyard, might appreciate well enough, you might learn to enjoy that, and embrace current economy, and buy that, and patiently wait to make money in a long run.