Checkout my marketplace!
My friend and I (software developers who love to play mtg) have been building out a marketplace for specifically magic the gathering cards for a little over two years now. I'd love to hear any thoughts/feedback from the community as we are trying to get more users and make it real!
The goal is to hit a niche that we felt like didn't exist with other options: to be peer-to-peer like Facebook marketplace, but retain the high quality search/filtering from places like tcgplayer.
We pretty much did this by having user tag their specific card when making a listing - that way it can be index and searched well even when the user doesn't provide that much info.
We also opened it up to other games like Pokemon and onepiece recently, but don't have much cards to list there yet
Please check it out and let me know what you think! And if you would like to list any card that would really help us get things going!