Largest variety have found locally is at the Safeway at Fairfax Towne Center on West Ox Road, off US50 and near I66.

Depending on what you are looking for Costco has restaurant gift cards and some others at a discount.

Use your membership.

And if you want to get rid of an unwanted gift card, another option is to donate it to St. Jude Children's Hospital through CardCash https://stjude.cardcash.com/ . They accept cards from over 200 merchants and the donation amount is typically 80-90% of the value on the card - you'll know how much before even providing the card # and PIN. And they only ask for your contact info - name, address, email, and phone. Donations are processed within days. St Jude is a good nonpolitical cause dealing with childhood cancer with ads on TV from time to time.