Dark Net is a tricky place, it not called deep for no thing. If you wish to start a journey down rabbit hole, you gonna get some decent guidance and knowledge. For instance, you will need some special deep web device for browsing tor network safely, like tor browser and a lot more. Or, you would have to bear unique habits for examining onion web, not to mark footprints.
Hopefully there are few sites 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 basic navigator to the world of dark web.
It got what you need : greatest deep web, the complete guides for anonymity, guide for darknet markets, onion reviews, current, updated and verified darknet marketplaces mirrors.