Hi everyone, I am curious about creating a nft marketplace where someone can buy and sell nft and for that am following the eth game programming course but my question is : all marketplaces out there are using opensea or anything else? Any advice pls? Am lost 
Tnx
Hello @AmineBek, hope you are good.
For now the NFT space is quite, the only good option for now is opensea, at least from my research.
If I found any other marketplace better than opensea or at least close to be like it, I will let you know, but far as I know, for now, opensea is the best…
If you have any more questions, please let us know so we can help you!
Carlos Z.
Thank you for your answer, will check opensea after finishing the course