Any Garak episode, especially the first scene in Past Prologue when Garak swoops in and hits on Bashir. Gayest. Scene. Ever.
“...if you should require any apparel, or merely wish, as I do, for A BIT OF ENJOYABLE COMPANY NOW AND THEN, I’m at your disposal, Doctor.”
LMAO
I recently did a re-watch of DS9 where I watched all of the Garak episodes. I highly recommend doing so, as all of the episodes with Garak are highly rewatchable.