Both Walmart and Amazon seem to have to this deal going now, Xbox One X 1TB Console – NBA 2K19 Bundle for $339. Cheapest various Xbox One X bundles have gotten down to recently is $299.
https://www.walmart.com/ip/Micros…/978434024 (Price in cart, sold by Walmart)
https://www.amazon.com/Xbox-One-1…B07GBBT1V4 (sold by Amazon)