F. Paul Wilson is a successful American fiction writer who is an anarcho-capitalist , and has been that way for 30 + years.
In the introduction to the new edition of his science fiction novel “An Enemy of the State”, [about a revolution /plot on a distant planet to install a capitalist system without violence], he even talks about having read/absorbed Rothbard and Mises back in the 80’s. [just like me!].
However, his most famous books are the “Repairman Jack” series.
Repairman Jack is a character who lives in New York, entirely outside the system, and makes his living “fixing” situations for people. The series runs the gamut of science fiction, horror and revisionist history as Jack gets involved, against his will, in a battle to save humanity from two other- worldly forces , neither of which is overly concerned about the fate of the human race.
[ Suggestion: if you read the series in sequence, the first novel is “The Tomb”. This was originally intended as a stand alone, one off novel. But fan demands forced Wilson to turn the novels hero, Repairman Jack, into a series character. However, “The Tomb” is a pretty weak book all in all , but don’t be discouraged!, the next one in the series ,“Legacies” is a vast improvement, and the series continues to improve from then on.]
Some of you might enjoy F.Paul Wilson’s books, I did, having gotten bored with endless discussion on Austrian economic theory, redundant “lifeboat” morality type arguments, and “what would Murray Rothbard do” etc. etc. Regards, onebornfree.
P.S. I’m not sure if he is an anarcho-capitalist, but J.Neal Schulman is another US science fiction writer who is generally considered to be " libertarian", at least.