My mom would always plant iochief when I was young. I don’t see it around anymore but I think you can get it online. I agree that the old fashioned sugary varieties have the best flavor.
This year I planted se+ hybrids Trinity (68 days) and Delectable (80 days). I was impressed with the complete pollination of these two hybrids even with the early stuff. The flavor was better on the longer season corn. And overall they were good. But I never had any that got to the “chewy” stage.