You are able to access to distinctive Darknet marketplaces using only the link, this implies a tricky situation : inpending customers and dealers lack the ability to sign up until they will get an urls from an already registered shopper.
Those can be found at https://darkwebonion.com/, it has active alternative URL to suggested Dark Web marketplaces. You ought to go to these URLs to sign up at the sites.
Wherever there are some problems with an access (links don't work), you shall hang around and check for Deepweb markets urls. Persist with it, as long as a several amount of the markets may stop and launch signing up from time to time, based on server load.