What is the best single-board computer for a monitor (TV)?

Hello, everyone.

Please tell me which of the many single-board computer options is best suited for use with a TV.

I plan to use a 4K monitor and a single-board computer to get rid of my Smart TVs and Google TVs—they’re just terrible to use, plus they’re not safe; it’s no secret that Samsung TVs track users.

Please share your recommendations, what to look out for, etc.