Cory Doctorow is a national treasure.

I can think of two long-standing major websites that have not enshitified: Wikipedia (though it has plenty of its own issues) and craigslist. Huzzah's to them.

One huge website I loved before it enshitified: IMDb. Now I grimace whenever I use it. Hint: When a site starts asking you to create a completely unnecessary account, it is undergoing enshitification.