Hiya - Welcome to Pherotalk. Glad you finally raised your head! 
Don’t be put-off. Using and evaluating pheros is pretty straightforward once you get the hang of things. Have you read this thread? It contains all the basic info for effective use:
In the meantime, I would suggest TUTH and some of the bonding/mood lightening socials as a good place to start.
Instant Shine for fun and feelgood confidence
IH for increasing the closeness and intimate bonding between you
Neither of these contain none, which if your wife is shy/reticent, may intimidate her initially but as the social pheros take hold, you could make good use of TUTH for enhancing sex or Ammo for reminding her of the all-round worthwile/sexy guy she has.
Again, her modesty may mean the heavier status pheros like A314 may initially be too much but the light suave/status of IG could also help remind her of good fun qualities in your relationship?
Hope to hear good results soon. 