What to feed a Maine Coon cat?

Hello! Me and my fiance are looking into getting a Maine Coon kitten, I've read that they need a larger kibble for the health of their teeth and jaws. I came across this Royal Canin Maine Coon 31 brand online, but they don't sell it in the pet stores near us. Does anyone have any other suggestions as far as bred specific Maine Coon cat food?