I've been researching the same. I can only afford a mid range one and the one that keeps popping up is the Sony 65XE900.
OLED is way out of budget. If you're in the UK I know the Sony model I mentioned is going for £1699.
Funnily enough, RicherSounds had a deal before BF where you got the Sony 2.1 sound bar and woofer. For BF they are doing the same price without the speakers lol