So currently this is my recommendation for web browsers for Android.
Chromium based (best for security on Android)
- brave, disable cryptocrap, telemetry sponsor background and you're pretty much good to go.
- cromite, an active fork of bromite which is basically an upgrade of ungoogled chromium
- Vanadium, if you are using GrapheneOS
Firefox based browser (none support per-site isolation as of today)
- IronFox, a active fork of Mull, basically the most harden FF flavor on Android
- Fennec, basically a fully libre FF flavor