https://blog.torproject.org/tor-is-still-safe/

Tor is still alive and well I promise

It is not perfect but it is by far the best thing we have. If it's legal for you to use you should be doing so.

For sensitive operations you should take further steps (follow the blog) like properly setting up your device, and connecting via a network not connected to you

After following up on a post on Reddit and two years of investigation, the reporters came to the conclusion that Tor users can be de-anonymized by correlating the timing patterns of network traffic entering and exiting the Tor network, combined with broad and long-term monitoring of Tor nodes in data centers.

I've been saying this for years. It's an open system, all you need are entry notes and exit nodes and you can launch exits for a pittance.

What are you going to use except Tor?

Anyway the risk is pretty low that you are going to get targeted by law enforcement. Even if you are a person of interest it is going to be easier just to wait until you make a Sec Opps. They would need to control every node in the path plus they would need to decrypt the traffic on the exit. Somehow I don't see that happening.

Also if you use Onion sites it is even harder to trace since there isn't a clear exit.

There are at least 67 instances which don't require email verification (though a few of those instances have closed registration).