Hard to say without knowing more about what you really want (picture size, budget, lighting, do you want HDR, do you need a wide viewing angle?). But as a generic recommendation, for the 55-65 inch size range, here are my suggestions:
Under $500 - don't bother (except maybe for one of those budget TCLs that are currently getting good reviews, and mainly if you really need a TV and just don't have the budget for more)
$500 -$700: Samsung NU7100. Some other sets at this price level (TCL, Vizio) will have more/better features, but are also more likely (IMHO) to have uniformity problems. This Samsung is a basic set but it reviews well with no major problems. It won't do HDR well, but it is good at "regular" 1080p and 4k HDTV.
$700 -$900: Samsung NU8000.
For about $1200-$1400, you are in Sony X900F territory. This is a very popular set for being a really good performer at a still-reasonable price.
If you have the budget, OLED TVs by Sony or LG generally get the best reviews, but they tend to start at $1600 and up, and they can have issues with burn-in and some other quality issues.