You can take a look at best selling 75 inch TV deals at Amazon & B&H Photo Video.

Amazon's new Fire TV Omni Mini-LED TV is recommended. https://www.amazon.com/dp/B0C7SH9FN2?------123456890?5422-20

just saw this thread... honestly, before you pull the trigger on any of these, what is your room setup like? does it get a lot of direct sunlight? i only ask because some screens struggle with glare way more than others and i wouldnt want you to be disappointed. be careful with some of the really cheap 75 inch deals out there tho. at that size, you can really notice if the backlight is uneven or if the processing is bad. if you want something reliable that really performs, i would suggest looking at the Sony BRAVIA 7 Mini-LED 75-inch. it is usually right in your price range and sony is generally a safer bet for long-term use and reliability imo. make sure to check if you need a special wall mount too, those 75 inchers are super heavy... lmk what you usually watch and we can see if that one fits your needs!

Samsung DU7200.

Get TCL 75-Inch Q65 right now, currently only $600. https://www.amazon.com/TCL-75Q651G-Accelerator-Streaming-Television/dp/B0CZLZZ6BB?------123456890?5422-20

LG C4 or LG G4.

TCL 75 inch QM7 now $1000, https://www.amazon.com/TCL-75QM751G-Accelerator-Streaming-Television/dp/B0CZML9HLD?------123456890?5422-20