There’s a lot of gift cards on sale right now in the Daily Deals section of eBay. Sadly these deals are not as good as they used to be without eBay Bucks and portal cash back. Still you can get a decent discount on some merchant plus whatever miles/points/cash back you get from your credit card.
There’s many $100 gas gift card that have a 7% discount. There’s also a $250 BedandBreakfast.com Gift Card for only $200 and you can buy a $100 Lowe’s Gift Card & get a bonus $15 Code. The last two are sold by PPDG so you’ll get 5% with Chase Ink cards.