Where’s the Best Place to Sell My MacBook Pro? (Perfect Condition, Original Box & Accessories)

I’m looking to sell my MacBook Pro (11-core CPU, 14-core GPU, 18GB RAM, Space Black) because 18GB of RAM isn’t enough for me and I want to upgrade to a better model. The MacBook is in perfect condition, no wear and tear, no scratches, nothing at all, and I still have the original box and all accessories. I’m not sure where the best place to sell it is any recommendations?

I’m looking to sell my MacBook Pro (11-core CPU, 14-core GPU, 18GB RAM, Space Black) because 18GB of RAM isn’t enough for me and I want to upgrade to a better model. The MacBook is in perfect condition, no wear and tear, no scratches, nothing at all, and I still have the original box and all accessories. I’m not sure where the best place to sell it is any recommendations?