Firestick (any work but 4k Max works best) + Stremio + Real Debrid. You will be able to find nearly anything you can think of. Its also the cheapest way and easiest. I’m an iOS guy and would rather not use an Amazon product but it is the best i have found. It also will load Android TV apps so modified youtube apps also exist and other things. Apple tv is locked down and there are jailbreaks for certain OS, if its not in the app store you will be limited.