Allready search that way.. its like impossible to find an answer on my question

But i don't give up..!
For educational purposes only.
Search on google about "how to create a site in tor".
From my knowledge before tor: break a few servers, put the site on one of them. Do not connect directly to the web server, you must connect to multiple broken servers to get your trace lost. The last computer must not be your home computer, it must be an infected one, to not get the police knocking on your door. In this way the police will knock on someone else door, and ... they will find an infected computer

.
There are allot of dark marketplaces on the internet right now but you cant trust them all. Dont trust every people who are putting their items on the market. There are allot of people who are really true with you but also allot of scammers so be careful witch one you use.