Pi-hole - Pi-hole is a multi-platform, network-wide ad blocker.
Adguard AdBlocker - Adguard AdBlocker browser extension, see review on Medium.
Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.
AdAway - An ad blocker that uses the hosts file. For Android, requires root.
Blokada - The best ad blocker for Android. Free and open source.
DNS66 - Local vpn for adblocking.