Empire Market is hot, original and expanding for the hights of dark web market on the tor.
It collects practically all of it's central features from now Alphabay. And calling itself a successor of it.
The validity of It's onion links can be confirmable by using the tor marketplace's own link-verifier webpage http://empiremarket-url.com/.
If URL links are not working, here is the alternative links where you can find working tor marketplace mirrors http://empiremarket-url.com/