Panaracer, Michelin, Schwalbe - all better than the basic Kendas. The ride quality on all of those is decent, and each is a little different. The Panaracer gives the plushest ride and the Michelin is sportier feeling, with the Schwalbe in between. The Michelin and Schwalbe come in a couple different colors if you need variety. The Schwalbe has a modern-ish tread. The closest in size of that group to original Dunlops is the Michelin. The Schwalbe and Panaracer are a little larger tires than original Dunlops, but they're also a little plusher riding.
The Kendas aren't bad, but they're not quite up to the others in the list. But if you need a tire and you just want to ride, they will do. Kendas are also sold at some locations under the "Sunlite" brand.
I would avoid Duros and Cheng Shin tires in 590mm for now. I've tried them and they seem more prone to flats, discoloration, drying out, and sidewall cracking.
Save your original Dunlop inner tubes if you can do it. They are better made than the basic, cheap tubes being produced today.
At least there are a few choices for 590mm tires. The Schwinn 3-speed size (597mm) is down to Kendas. They're not bad, a little competition would be nice.
The antique American "lightweight" size of 599mm is even worse - no new tires produced in that size (and there's haven't been in many years). On some 599mm rims, the 597mm Kendas used for the Schwinns will work satisfactorily (but may not work on 599mm rims with taller sidewalls).