I have no interest in the dark web aside from general access if the internet is down and mirror sites.
Can downloading TOR get me there? I know nothing about this
You're looking for an alternate Internet? Better get a ham radio license AND get into a very niche area of ham radio. That's your only hope though.
Once you understand what the Internet is, you quickly understand that when it goes down, it goes down. Installing a piece of software is NOT going to give you some access to a "magical internet" that exists in the ether or something.
There is nothing magical about the Internet. I fully understand how computers are networked together, how traffic is routed, the DNS system, domain name resolution, etc.
The Internet is a conglomeration of 10's of thousands of routers, switches, hubs, and server hardware. And hundreds of thousands of miles of fiber optic and other cable -- mostly unguarded in the middle of nowhere.
Once you learn how fragile the Internet is, you become a Ham Radio operator :)