Raise does have
Disney+ gift cards listed, but right now all the cards listed there are at 1% off, and to be honest I don't think you are going to get anyone to buy it for such a small discount. From looking at sold Disney plus gift cards on ebay, most of them sold at 20 - 30% below face value.
Actually, Disney+ is not being accepted for sale on raise at the present time. (
https://gcx.raise.com/donotbuy) Cardcash is also not accepting Disney+.
I think your choices might be limited to ebay or giving them away to someone (or using them, of course).