Obviously everyone has their favorite and browser discussions inevitably turn into flamewars, but TFA is true: at least don't choose Opera. That's really sad considering its history.
My favorite is currently Brave, once I turn off the cryptocurrency stuff. I used to prefer Firefox, but it isn't stable for me under significant load; perhaps leaky JS in one of my hundred(s) of open tabs makes things slow to a crawl. I wish that vanilla de-googled chromium like ungoogled or similar would adopt the same upgraded sync functionality that's built into Brave, but for now Brave works fine and I can use all my regular open-source Chrome plugins.