Pretty much every model of reader except Kindle is going to support ePub as one of its formats. Kobo would be the big one. Others include Onyx-Boox, Pocketbook, Boyue...
Problem is that in the US it's hard to find anything in a B&M store that's not a Kindle or a Nook anymore. Best Buy used to sell Kobo, but dropped them. A handful of independent bookstores across the country sell Kobo's or will order them, but I don't know how good they are about having the newer models in stock. Family Christian sells, or at least did, Kobo but again not sure about the newest models and not sure if they still sell them with their bankruptcy stuff that's been going on.
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