This is a list of videos that have helped me learn various tricks or techniques. I will add to this as I come across other videos worth recommending.
PixInsight & Deep Sky Processing
Add Ha data to RGB Color. This is a good video that demonstrates a number of PixInsight tools. Also, a good workflow for galaxies.
A good workflow for OSC Galaxy Data
Comet Processing in PixInsight.
How to group data in PixInsight’s WBPP.
Philippe Bernhard. Not videos, but quality tutorials and illustrated PixInsight workflows.
Lunar Imaging
AutoStakkert Tutorial for planetary or moon images.
A very well produced video covering capture and post processing by Cosmic Captures.
Comet Processing
Comet Stacking. Basic workflow is to stack in WBPP; remove the stars and re-register the images on the comet, integrate and add the stars back in.
Comet Animation. Using image containers and the Blink process it is relatively straightforward to animate comet motion. I also have used Lightroom to adjust image parameters.
Sweetman Astrophotography 