I suppose you know it, but Firefox on Android supports add-ons! It's amazing.

Firefox focus is worth a try. built in ad blockers, the ability to block javascript, private browsing is the default. Good stuff.

There's also, I believe, a regular firefox for android which I think does do extensions.

I do use focus as my default browser :) it's indeed lovely

True, it is fantastic imho. I run ith with ublock Origin.

Give Brave a shot. It's Chromium with an ad blocker, privacy blocker, and HTTPS Everywhere built in!

Don't, especially because it's Chromium and because it's from an ad company.