I've been researching the heck out of TV's lately as well, looking for something in the 55" to 60" range in a similar price range. It will be mounted on a riverstone rock fireplace so am also looking for thin profile as well.
I found the
www.rtings.com website is a good place to start. I also have a subscription to Consumer Reports online and their reviews are great as well.
Here are some of my considerations based on reviews and recommendations
Sony - 55X900E - $1600 - top of the ratings in this price range but a little thicker than others
https://www.amazon.ca/Samsung-UN55MU...dp_ob_title_ce
Samsung UN55MU8000 - approx. $1600 - great design but falls a little short compared to Sony
https://www.amazon.ca/gp/product/B06...s00-20&ie=UTF8
Panasonic 58EX750 - $1700 - Amazing specs, 58" instead of 55 -
https://www.memoryexpress.com/Products/MX67492 this is the one I'm leaning toward but will visit a big box store and try and lay eyes on all of them. Panasonic is no longer sold in the USA but still has a loyal following in Europe and Asia.
There is also a 55" LG OLED that just dropped to $2500 which I'd like to see as well. Not sure if it warrants the extra $800-900 but if so, I may bite the bullet. I have a 9 year old 52" Sharp Aquos 1080p that's still going strong, but that may get moved into the man cave above the pool table