The Internet Archive has a beautiful trove of pulp magazines ranging from the late 1800s through the 1990s, all free, all scanned in high-quality color, available for you to read or to admire the pretty pictures.
Being a sci-fi and fantasy fan, as well as a connoisseur of the Technicolor cover art of 20th century pulps of that genre, I picked out some of most iconic and amusing covers for my own use. I modified the covers to add silly titles and author names. Then I reduced covers and backs to a size at which people could still admire the covers, but at which my 1:6 scale populations could also read them.
Here are my Shalka Dorks getting meta-fictional: sci-fi characters reading Atomic Age pulps!