Where is the best place online to sell a gift card?

Good morning

I have a bit of a dilemma and I need some help solving it. I did a focus group the other day and I was paid via an amazon egiftcard. I am trying to sell the gift card online but I am having the world's worst trouble doing so, cause it seems like nobody buys amazon gift cards anymore.

Does anyone out there know of a site or maybe a subreddit where I can sell my gift card?