The TOR browser is just a small part of the whole ‘dark web’. Installing and searching using Disconnect / DuckDuckGo is the easy part.
Where it gets more interesting / difficult is finding consistency of the .onion addresses. Keep in mind why people use this method of communication. The domains tend to change regularly to avoid detection so you’ll have to become a member of some chat rooms where users update the .onion links. They appear like random or nonsensical sites like jghghsjagfja67576575.onion and in a few weeks its moved on to gajhgtytytyuvv.onion etc.
As a software engineer and all round geek it is a very clever bit of ingenuity.
I run it through a linux VM with enforced security policies, firewalls and VLAN’d off from my network just to be safe as there are a lot very nasty websites malicious code wise on there. Also, the content, if you’re successful finding up to date message boards be prepared to see stuff you possibly might not want to……or want to, which is one of the reasons you may be using it.
Be careful.