You are required to access to distinctive Darknet marketplaces only with an alternative URL, that implies the following : new vendees and merchants are not allowed to join the market before they will gtab an alternative links from an previously registered vendor or buyer.
Those can be found at https://darkwebonion.com/, it possesses new link to all of the Darknet marketplaces. You should follow these links to register on the sites.
In case that there are some issues with an access,for example, links won’t work, you should wait and check for Darknet marketplaces URL. Persist with it, as long as a several amount of the marketplaces shut down and let signing up regularly, based on server load.