i was under the impression that agora etc were all dangerous phishing sites...
is there an updated list of 'safe' dark marketplaces?
There are lots of articles on clearnet, look around
But ordering substances that are forbidden in your contry is illegal.
Make sure to use Tor while searching for clearnet articles about the deepweb. Don't be low-hanging fruit and Google crap like that without Tor - it's the perfect excuse for a raid which will waste law enforcement's time. Search around Reddit. Acquire knowledge and do what you want with it
within your country's laws - the government always knows best and is just there to protect you.