I use the free Nvidia filters for MSFS, I am not too keen with the default blue haze, so these are the settings I use as a good start point, you can tweak from there?
Default, before filters
With Nvidia filters
Details
Sharpen 6
Clarity 32
HDR Toning 12
Bloom 6
Color
Tint Color 30
Tint Intensity 10
Temperature 6
Vibrance 20
Brightness / Contrast
Exposure -6
Contrast 30
Highlight 20
Shadows -50
Gamma -10
Sharpen
Sharpen 15
Ignore film Grain 100