There's Paradise Syndrome, a great (half) Spock episode. But not really a Vulcan episode, we learn that while Spock is a wonderful first officer/science officer, as a Starship commander not so much.
Nothing Vulcan especially jumps out of the episode.
Similarly, The Tholian Web, a lot about Spock, not much Vulcan.

Nothing Vulcan especially jumps out of the episode.
Similarly, The Tholian Web, a lot about Spock, not much Vulcan.
