I have an Ubuntu server running in Oracle Cloud which I vpn into using Wireguard from various devices and locations - home desktop, phone on 4G, etc. I'd like the server to do ad blocking so my various clients get fewer ads. What do people think the best technique is?

• PiHole on the server? Somehow configure the server / vpn to use the local PiHole server?
• Software similar to PiHole but better suited?
• Something simple like a hosts file block? This is higher maintenance.

Suggestions appreciated for ways to do this on the server.