I agree with the King and Knight of Cups since they can be self-indulgent and a bit weak-willed. I wouldn't limit it to reversed since I think its part of the fabric of their being, although reversal or "ill-dignity" can give it the upper hand. While he didn't use the term narcissistic, Aleister Crowley made it plain he thought they were vulnerable, with words like self-absorbed; easily flattered; sensual; idle; superficial; addiction-prone; opportunist; impressionable; lacking depth. I think, though, that it's a "quieter" form of narcissism; the narcissists I know tend to be boisterous and larger-than life; they're overflowing with exaggerated self-love and they don't care who knows it. Now it has a clinical diagnoses; previously we just called it being a "self-impressed ass."
Another one that comes to mind is the insufferably smug-looking man in some versions of the 9 of Cups. The Page of Cups also seems like a bit of a "poseur," putting on airs, but it may be the innocence of the actor more than a cynical flaunting of self-styled superiority.