NVidia Shield is considered the top device for Google certified box and Onn boxes the best value Google certified - these are the devices for you if Netflix, Disney + etc are important because they will have up to date apps for these services. They have Google TV as the operating system.
Formuler Z11 Pro max - you would get for MYTVOnline 3 app, some say it’s the best app for IPTV. Android open source operating system.
Troy’s thoughts after a major update,