Firefox + UBlock works great on android.

DNS66 works ok for apps that aren't browsers.

I've been using Firefox + uBO on Android. But I also run NetGuard from F-Droid as a local VPN ad blocker. I used to run Blokada, which does the same thing and is good too. But I like the more granular control over each app in NetGuard.

I use Firefox + uBlock Origin, but to block ads in other apps I also use the NextDNS app (you can set up a custom set of blocklists, including adblock lists, in your NextDNS account).

I use brave browser for the fone, it works very well. And for youtube, I use the youtube vanced app which blocks ads by default.

For system-wide blocking (no root required): https://f-droid.org/packages/org.blokada.fem.fdroid

For browser ads, just use Firefox or one of its forks and install uBO.

Adguard works well since it's the only one which does cosmetic filtering and injects JS into requests that counters anti-adblock behaviour. Everything else is a simple DNS filter.

On a rooted phone, AdAway works fine. https://github.com/AdAway/AdAway

AdAway on a rooted phone is amazing for system-wide hosts-file-based ad blocking. YouTube Vanced blocks YouTube ads.

Iuse AdGuard as a system-wide adblocker on Android, it works pretty well IMO.