I like the sugar baby watermelon and minnesota midget cantaloupe.
Both are open pollinated varieties that have been around a long time, and have produced pretty well, though not last year with the heat and drought.
Those are nice varieties, but they don’t quite match up with what I need. Sugar Baby, according to the description on the packet, weighs 8-10 pounds, twice as much as I can lift with my messed-up shoulder. And cantaloupe isn’t a watermelon ;)
I do have several varieties of non-watermelon melons, I’m planning to grow Rich Sweetness 132 this year. It would cross with a cantaloupe.