I’ve lived in AR, not in the Springdale/Fayetteville area, but in Russellville. It’s hot, humid, not a lot of wind, and generally a good amount of summer rain. As such you’re not going to be able to grow peaches without spray.
I know you’ve already planted Elberta and Belle of Georgia, but any rot protection you might get from slightly rot resistant peaches is going to be nullified by the high humidity and rain.
Elberta is very susc. to bacterial spot. Plus, depending on where you got your trees, it’s likely your Elberta peaches are mislabeled.
Elberta isn’t grown commercially to any extent any more. Even some orchards claiming to sell them, probably are selling something else as Elberta (There’s no way anyone could pick out Elberta peach from blind taste test anyway.) Same thing happens with Redhaven, btw. People sell all kinds of peaches as Redhaven, which aren’t Redhaven.
Because Elberta isn’t grown commercially anymore, few nurseries actually propagate it. So nurseries just label and sell non-Elberta peaches as Elberta. Not all do. I’m sure a few nurseries actually propagate Elberta.
But most nurseries propagate varieties which are grown commercially, because that’s their bread and butter. Sadly, sales for backyard orchards don’t amount to enough for most nurseries to propagate peach trees which aren’t used in commercial orchards.
There are some nurseries which specialize in niche trees. That’s why I mentioned it depends on where you got your trees from.
I grow Williams Pride. I have some issues with it because it ripens in the heat of summer. Sunburn is a problem. Also have more problems with summer diseases because it ripens so early, in the heat. Fall apples are easier for me to grow.
I’d echo Lucky’s comments about your original pear choices being a siren song for fireblight. As Lucky mentions Kieffer is resistant. Most people use Kieffer to can with, although I know Lucky prefers to eat them vs. a traditional buttery texture pear which your planting choices show.
For a softer buttery type pear, you might consider Harrow Delight, or pretty much anything from the Harrow breeding program. You can identify Harrow pears because they will have “har” somewhere in their name (Harvest Queen, etc.) With the exception of Harrow Sweet, they all have good fireblight resistance, I believe.