Sony OLED A9G Master Series provides pretty stunning pictures. We have at 65" version installed in a Master bedroom (although Sony just announced the A9H at CES).
As mentioned above, Panasonic plasmas still rock. I have a 65" VT60 that still does an incredible job. I've been debating replacing it with a 77" LG OLED as their prices continue to drop. Check out greentoe.com for deals from authorized dealers.
LG has the easiest GUI of any TV. I hate Sony's Android OS, but it's all personal preference. I picked up a LG c9 OLED for my parents due to the pointy magic remote thingie that is easy for them to use. Large icons and click and that's pretty much it for LG's. Sony's OS gives much more detail and control, but it's a PIA.