Probably not most popular choice here, but Vivaldi... I'd like to condition myself into using Tor, but it's hard getting to used to the occasional slowness. I still have FF installed too, but it's just so incredibly bug ridden on Android that I'd not recommend it for daily use.
Vivaldi has a better vision.In android, I use stripped-out version of Firefox i.e.fennec and mull. I do have open-source fork of chromium, Bromite just-in case I need it.