Hi Eric Eagle
In regards to a list of tools that support parallel processing, we do not have one that is public yet. I just wrote one and hopefully it can be made public soon, but in the meantime there is a method where you can find most of the tools that support the Parallel Processing Factor environment setting.
- Open File Explorer and go to the following location: C:\Program Files\ArcGIS\Pro\Resources\Help\gp
- Click on the Search box and a new contextual menu should appear, click on Advanced Options and click on File Contents so that we can look through the files themselves
- Search for parallelprocessingfactor and a list of tools that support this environment setting will appear in the results
Please note that this will list most of the tools that support this environment setting. Some toolboxes such as GeoAnalytics Server and Raster Analysis will not be listed here, but can utilize distributed computing on your server machine.
Hope this helps,
Jacob