Rules (WIP)
It's the same as it has been for years.
You either pick your flavor of Firefox fork, or your flavor of chrome fork. That's it, that's the options unless you can use safari, which isn't exactly an improvement.
There's supposedly some stuff coming that isn't a fork of other things, but there's no telling if or when it'll be available and useful.
There are at least a half dozen different browsers based on neither Firefox nor Google, but rather WebKit 2 or WebKit 3. Their availability on Windows or Mac is probably limited, but they've been available for years on Linux and probably *BSD.
That's ignoring browsers like links, links2, elinks, and w3m.
Then there's the usual other non-privacy browsers like Opera and IE.
There are a great many options besides FF and Chrome, not based on the same engines.
Librewolf with some extensions is the only safe.