Costco really is the closest thing to a Buccee's
Tangent note -
So apparently Sam's club and Electrify America and going to setup 150 KW chargers next to Sam's club locations near highways that don't already have a location close by. I personally am not a fan as I like the Walmart connection with Superchargers more as Walmart is a good destination spot for road trips, usually there is fast food inside or close by, healthy options, and anything else you may have forgotten on a road trip.
That being said, Buccee's has really perfected the extended stop and shop location for road tripping.