I just bought a Samsung qled 70 series... My advice is to make sure whatever tv you get has Dolby vision and Dolby sound .. samsung using hdr 10 which SUCKS compared to Dolby vision. I spent 1200 on my tv and there was a vizio that was 600 that has Dolby vision and it looks better than my Samsung ... So just make sure u are getting something that can support Dolby vision.
That was one of my concerns because you won’t likely find both in a TV.
Ultimately went with the Dolby Vision. Was mesmerized for a week or 2 just watching 4K Dolby vision videos on YouTube lol