For the time, and juggling what censors wanted,
MUDD'S WOMEN
actually has some messages in it that could get overlooked (partnerships, beauty being on the inside and not due to the help of a drug), pretty much spoken by Eve (and not Lt Yar) and even Harry Mudd (in an abrupt character change scene for one brief moment) acts in agreement. But it's definitely one of season one's weaker outings and feels something like any old Western shtick but given outer space trappings, swap a box of dilithium for a box of cow meat and.or cow pies and Harry Mudd is still the same, even if there's no big cowboy hat. Plus, I'm sure "lithium" was promptly renamed to make it sound more science fictioney instead of an antidepressant. If nothing else, anyone born after 1937 sure seemed to lose out over certain carbonated fizzy beverages loaded with drugs... but I digress (odd but true!). It's not season one's most shining hour for being mostly generic and oversimplified, but there definitely are worse. And I didn't even mention the plotting gaffe where we're shown the fake drug glistening like the real one as a fake fake-out and, while I need to rewatch this, I don't think it was a POV shot from any of the characters during that scene.
What's left:
THE MENAGERIE PART II
SHORE LEAVE
COURT MARTIAL
THE ALTERNATIVE FACTOR