I’ve just learned that Amazon has taken out construction permits for a storefront at 450 Nichols Rd in Kansas City, MO. This space was previously occupied by a Tesla store:
Amazon has not confirmed the news, but I have found construction permits that Amazon filed for that location. The permits mention Amazon Books by name.
Most Amazon Books locations are noted as being temporarily shut down, but when they were open they stocked a selection of books, games, and electronics, including the Kindle, Alexa, and Kindle Fire. A number of stores were remodeled late last year to include more gadgets, electronic shelf labels, and a greater concentration of books (they were no longer being shelved face out).