Best 4k TV for around £500ish

hi, i'm looking to upgrade to at least a 55" 4k tv but the whole tv market is a minefield. What sounds like a great tv is actually garbage according to comments. I know the basics of tv's ie. what led/oled etc means. I mainly will use it for gaming and movies, i want all the hdr10 stuff etc. What do you guys reccomend. I hate trying to buy stuff like this because i feel like i'm gonna buy one when i could of got a better one for same price.