...sell them to the National Enquirer without fear of legal repercussions.
I assume you mean that the National Enquirer would buy them to simply burn the documents. They are robust Donald Trump supporters and currently feature a story on the front page proclaiming "Trump finally caught the WH leaker!"
The best media outlet to sell them to would be Penthouse or Hustler.
I wouldn't expect any legal repercussions for the packet-sniffer as we just saw Rachel Maddow handling Trump's tax returns from 2005 and she is not in jail.