OLEDs have come a long way since 2016, with new OLEDs having burn in protection and better resiliency and since you know how to use your OLED considering yours lasted for 8 years, you'll be more than fine and if you are not chasing the highest brightness/image quality even a A3 will be more than enough for you, most people get burn-ins because they leave static content running for hours, for normal usage of 4-5 hours a day, it'll be more than fine, that said if you can, do get the extended warranty with whatever OEM you decide to get,
You can look into QLEDs, they are not too far off OLEDs imo but thats subjective, would suggest you to go to any store just directly compare TV models.