Your location is Italy : do you hold an italian Platinum card (beginning with 3752-8) ?

If you are already SPG Gold (as stated in your profile), the Plat will not give you any additional benefit.

Hilton Gold (if still available...) is usually limited to the 1st year in Europe.

You could apply for the Priority Pass card.

The 4 free supplementary gold cards for family members or friends are useful.