Concert lighting too red or too blue in PE2020

@Lou216 said:

The colorizing gave me 4 colorized options to choose from, but is there any way to enhance the colorized version?

You need to use the Advanced mode of the Colorize tool.  It can be quite tedious to follow this approach, but it can be done.  So, I converted your first photo to black and white, and the colorize tool mainly colorized the skin.  Going to advanced mode, I could fairly easily colorize the guitars and the shirt of the main subject.

Here is an article that gives more information about the colorize photos tool.

These are very difficult images to correct because the color is derived from what I assume was the color of the stage lighting.   Presumably the lighting color was changing constantly and there is almost certainly no quick fix for hundreds of photos. You can try the Enhance>Adjust Color>Adjust Color for Skin Tone dialog.  All you need do is click somewhere on the skin of the person and adjust the sliders.  Here is an example of what can be done to the first image.

However, I couldn't get any acceptable results for the other two images.  You might also want to try converting the images to black and white.  Then, if you really want some color, use the Colorize photo tool.