I recently developed a Clash Detection By Categories script that may be of help to any of you.
When running the script, a dialog pops up to select the categories you would like to clash. It will create one 3D focused view for each clash detected. You can also select the colours you want for the categories.
There is some package dependency to get it working. Attached you a screenshot;
This has been developed and tested using Revit 2020 and Dynamo 2.3