Black Market is a hard place, it not named black for no thing. If you need to start a walk down the hole, you would have to need some great guidance and knowledge. For instance, you will need some different tor device for browsing deep net anonymously, like tor browser and a lot more. Or, you would have to acquire other habits for exploring black markets, not to allow traces.
Hopefully there are some websites build to guide you through complex world of underground deep web hidden from the surface. This one is the best one i know http://darknet-markets.site/
Darknet-markets.site - is an ultimate usher through the world of black internet.
It got what you need : greatest tor, the total guides for security, guides for deep web marketplaces, darknet reviews, recent, updated and legit deep web markets onion URL.