Whole Foods  (WFM) shareholders congregated at the company's Austin, TX headquarters and voted to approve the company's purchase by Amazon (AMZN - Get Report) on Wednesday.

The two companies are expected to close the $13.7 billion deal in the second half of 2017.

While that deal shocked the retail world, TheStreet's Brian Sozzi thinks Jeff Bezos's Amazon should buy Vitamin Shoppe (VSI - Get Report) or Foot Locker (FL - Get Report) next.

Foot Locker shares have been slammed in recent days amid a disappointing second quarter. Amazon's recent deal with Nike (NKE - Get Report) hints it wants to be an even bigger player in shoes, and Foot Locker's well-regarded brand across malls would be a good entry point. 

Meanwhile, Vitamin Shoppe's stock has also crashed as people shop for deals on supplements online. Similar to Whole Foods, Vitamin Shoppe would give Amazon a trusted name in the space and a solid physical store footprint. 

Don't miss these top stories on TheStreet: