Last I checked, Home Depot, near my location, still had some Honda lawn mowers available for sale. You can check Honda Authorized small engine retailer shops around your city, but with Honda no longer making gas push mowers, new ones from stores may be getting a bit harder to find.
Facebook Marketplace or Craigslist would be my next suggestion to find a gently used mower if you can't find a mower at a store with the features you want.
Feature-wise, I like the hydrostatic transmission option; both of my Honda lawn mowers have it. Never used a mower with Honda's Smart Drive or the 1-2-3 speed transmission options. Roto-stop, like you mentioned, is a good feature to have too.