Perry Rhodan, the German sci-Fi pulp comic series, must be one of the most prolific lines in sci-fi pulp. Having just looked at the cover gallery there are over three thousand editions! Its following must go back years and be massive in its home country.
This is the cover gallery link https://www.perrypedia.de/wiki/Titelbildgalerie_PR_1_-_99
Here are just two of the covers that caught my eye, simply because they contain my old mucker the Dyna-Soar, a design I knew well as a kid because Century 21 Toys released a lovely plastic version as part of their Project SWORD range of spaceships.
Do you read Perry Rhodan?