A great way to spot the best deals is by checking the hourly updated Amazon rankings :

• Best Sellers in Data Storage (Click here to see the ranking):
  This is one of the most useful rankings to follow — we photographers and videographers are always running out of storage :) The Sandisk 2TB external SSD is always a good buy, and I am a big fan of NVME so I am not surprised good sales on the Samsung 990 EVO series .
• Best Sellers in Mirrorless Cameras (Click here to see the ranking):
  Canon rules followed by Sony.
• Best Sellers in Computer Printers (Click here to see the ranking) :
  If you are a photographer you should always print your photos too! HP is really selling hot at Prime Day!
• Best Sellers in Electronic (Click here to see the ranking):
  In the overall electronics rankings the Airtags are selling hot. Not surprised, I own a dozen of them to track all my gear, wallet, bikes and sometimes even my kids :)
• Best Sellers in Camera & Photo Accessories (Click here to see the ranking):
  Amazon Basics and lots of Sandisk products! The best selling SD card is the Sandisk 128GB SanDisk 128GB Extreme PRO
• Best Sellers in Computer Accessories & Peripherals (Click here to see the ranking) :
  Again Amazon Basics and Anker products are on top.
• Reconditioned ranking (Click here to see it) :
  It’s really Apple products that is selling in masses!