Black Friday 2018: Nintendo Switch Mario Kart bundle is sold out nearly everywhere -- here are your options
https://www.cnet.com/news/black-friday-2018-nintendo-switch-mario-kart-8-deluxe-sold-out-cyber-monday/
If you just want the Switch alone (not a bundle), Rakuten.com is currently offering 20 percent off sitewide with promo code BF20. I found at least one seller offering the console for $310; the code brought my in-cart price down to $250. But this was a third-party seller, not Rakuten proper, and there are other third-party vendors that have marked up the starting price to $329 (which would still get you down to $263). And supplies are definitely limited.
Pray for the sites below to replenish stock.