Right now, my default is Cromite, and I occasionally use Brave as well. I have tried Firefox with uBO, but unfortunately it is slower than the aforementioned browsers and also lacks some features. I’ve also heard that Gecko-based browsers in general have a security issue on Android, but I don’t know the details. Which browser(s) do you use/recommend and why?
The best browser for privacy will always be Tor. But obviously that comes with many compromises, and is more than just a browser.
Other than that, there is no best. Many of them have various degrees of blocking and hiding, which will cause problems on some sites and not on others, many of them have various privacy tools that others don’t.