If you want retail: SNKRS, footlocker, finish line, JD,

Resell: StockX, GOAT, eBay

Okay beaters are great, use them but sometimes just wear your heat also, keeps it different also sneakers tend to have a life about 5-7 yrs then the glue starts to come off and the leather can get damage too due to temparature they are in.

Forget the shipping box, just use your regular box, and make sure u put the box in a good place, I live in new york, and kept some sneakers in the basement, rats tore them parts