If you go directly to the game, you can see Arceus is included:
https://www.amazon.com/Pokemon-Legends-Arceus-Nintendo-Switch/dp/B0914YGQSH
Dread is too:
https://www.amazon.com/dp/B097B1149G?m=ATVPDKIKX0DER&ref=psp_pc_a_AW4J3K2VIRZ7L&th=1
Mario Party Superstars:
https://www.amazon.com/dp/B097B2HQ5R?m=ATVPDKIKX0DER&ref=psp_pc_a_AW4J3K2VIRZ7L
But you have to have them ships and sold by Amazon for this to work. Kinda sadly Arceus is $54.99. Normally it's nice to save a few bucks, but here it means you only get $54.99 off when trying to do three $60 games if you pick Arceus. edit: you're right that's silly.
There is a search box on the b2g1 page that you can search for games. Mariogolf, skyward, link's awakening, etc are part of it like the target sale. No breath of the wild because it's out of stock ships and sold by amazon. But if you know what games are on sale at target, you can search for them at the Amazon sale page and find most of them. It's not as good as target, but if you have Amazon gift cards to burn or something....