I want to block ads and trackers on the whole home network. I’ve been using adblockers and trackers for years now; I currently have a Raspberry Pi. I was thinking of setting up Pi-Hole with AdGuard. Any other suggestions are welcome. (I can’t use a custom router, because my ISP doesn’t allow it)
If you want cheap and easy, something like NextDNS. Otherwise, your tentative plan works just as well. My family liked NextDNS because all I had to do was have them install an app, enter my code (for the profile I configure for them), and set it to on. The rest was magic, to them.