I get every app I want on my Fire TV and all without the Play Store

I like using the Amazon Fire TV Stick because it has a fast and responsive UI, turning my old dumb TV into a modern smart TV. However, the FireTV Stick does not have the Play Store. It features Amazon’s own version of the App Store, boasting a massive app library, but it still lacks many apps due to restrictions, its custom UI, or a region lock that I cannot live without.