While not Tor, I browse I2P websites from time to time. tracker2.postman.i2p is a great torrent tracker if I want to easily get access to leaked material I read in the news about. And planet.i2p to see newly "registered" websites. Content on those websites vary, but I've stumbled upon a couple of blogs, ranging from the mundane, to conspiracy theory blogs, which are also fun to read. It really does give you that 90s internet feeling.

Personal blogs in my case. I find a similar landscape on Gemini. I really dislike the noise proeuced by ad-sponsored websites.

A surprising number of "clarinet" (er clearnet spellcheck) sites have onion sites, if you use Brave and TOR it sometimes shows up a little onion in the right telling you there's an onion version available.

The regular tor browser does this too.

Nytimes.Com is an example.