Being kind of a cheapskate, I've tried chromecast and the Amazon one and then bought an AppleTV device. I haven't had issues like I did with other dongle-like devices with having to restart them when there was a hiccup or crash of some kind - which is especially annoying when watching live sports.

I now have two AppleTV devices

(I use the word 'device' because they also have a streaming product called AppleTV+, which btw has some really good shows, and I think you can get the streaming service w/o the device)