There are a few random threads about the forthcoming Grand Conjunction. One of these has been discussing the luminosity differences between Jupiter and Saturn and how to image in that circumstance.
I was prompted to do some research, and found that this was also being discussed on the Cloudy Nights forum, so I am including a link to a CN thread that discusses filter options, and processing:
https://www.cloudynights.com/topic/7...n-conjunction/
Might be worth following their preparations.