Mike’s Amazing World of Comics is a fantastic resource for comic book indexes, cover galleries, and more. Perhaps the coolest feature on the site though, is the virtual Newsstand. Just enter a month and year (or cover date) and the site returns a page showing the cover of every comic on the stands that month. You can refine your search by publisher.
You might have some fun plugging in the month you were born, or the date of the first comic you remember buying. It’s great for giving some historical context too; the images above were pulled from the results for the cover date of April 1964. Kind of gives you an idea of how revolutionary Marvel was at the time.
Check out the newsstand time machine at Mike’s Amazing World of Comics.