What is the best TV I can buy sub £600 at least 49″ & good for emulated games?

Hey,
What is the best TV I can buy for £600 or less which is at least 49 inches and suitable for playing emulated games. Should I be looking for a 4k 10 bit hdr?
I would consider increasing my budget to £800 if necessary.
I am in the UK.
Thank you very much.