Double-Process RAW For Better Tonality
Don't try to do it all in one step. Use the power of RAW to process two separate images optimized for different tonalities.
One problem photographers have always faced is the fact that no medium yet invented can capture the tonal range our eyes can see. Film can't get close to recording the brightness range of light that the human eye can perceive. This holds true for digital sensors as well. While some high-end sensors can record more tonal information than film, they still can't record all the tonal variations the eye can see.