Nextdns.io works well, and lets you customize tons of features. Alternatively, you can run a pihole on pretty much any spare computer to work as an home adblocker. You can also route up to an adblocking dns with it to double up.

You want to get extra wild, setup a wireguard vpn server at home after that, and have your phone auto connect to it when you leave your home wifi.

No more ads ever.