Try an onn. 4K Google TV box from Walmart. It’s a standard Google TV box with no extra bs for only $20. You can load whatever Android TV apps you want on it, like SmartTubeNext to replace YouTube. It has no ads, sponsorblock, etc. Besides ReVanced for Android phones, SmartTubeNext is the best for TV.
Hah, I’m also running FLauncher. It was the best/cleanest I found with the most customization.