Rite Aid has a few offers for discounts on gift cards that comes in the form of Plenti points. You can get 16% off Best Buy and Sephora, 20% off Domino's and more.
Best Buy has some third party gift card deals available online that can get you a 10% discount in the form of a Best Guy gift card.
There's a few gift card deals going on today that can get you some decent discount. The offers are available on Amazon, eBay, Rakuten and MyGiftCardPlus.