I often get asked which theme is the best to set as the parent, Blank or Luma, when it comes to creating a custom theme in Magento 2?
Well, there is not much difference except few UI appearance in Listing page, product detail page, cart page, checkout page.
A very good description has been provided by BSS theme. Here we go https://bssthemes.com/blog/magento-2-theme-comparison-luma-and-blank/
