For some reason, I hadn’t even considered the use of Blokada or similar solution, even though I’m familiar with them and AdGuard-home locally. I’m definitely going to get a VPN or DNS based adblocker in place for them, that should help out a bit.
RSS is also a really good idea, but I’ll admit that I’m a complete newb on that front. I have it on my list to explore RSS options for myself, so maybe I’ll consider my dad’s needs when I’m doing some digging, too.