Atlas Obscura had an article in which they ordered a box of Big Mikes from the Miami Fruit Company. It's a little on the pricy side to ship boxes of boutique fruits across the country, but they have quite an interesting selection.
If I was in your shoes, I might wait for Big Mikes to be in season, then order the banana variety pack[1] (and ask that they include a Big Mike). You could pre-order a large box (10-14lbs) of Big Mikes[2], but that seems like a lot to buy at once.
I've never heard of these folks before today, but now I kind of want to throw a fruit tasting party.
I regularly order fruit from these guys and can attest that it's all very good quality. The banana sampler in particular is one of the few ways I can actually get a good variety of bananas outside of being on holiday.
I was recently in Colombia and made a point to find one. They are indeed much creamier and tastier than the Cavendish but nothing to lose your mind over. I still eat bananas regularly but even months later I find the taste dull relative to the Big Mike.