On Android, the only ones I would use is Fennec (F-Droid build of Firefox), or IronFox (privacy focused fork of Firefox), almost purely because they are the only ones that can use extensions (none of the Chromium ones can do that I think!)
Brave is awful, has weird crypto NFT shenanigans going on, I would not recommended. Vivaldi is closed-source and, honestly, isn't very special (especially the Android version). The best Chromium offering is probably Cromite, which is a privacy-focused one that has an ad-blocker, but still, no extensions which kind of sucks.
I am moving to Piefed at scallisto@retrofed.com (https://retrofed.com/u/scallisto)