TheGameKat wrote: »
The free version of the holdemresources.net calculator allows you to construct your own push-fold charts. Several years ago when I was primarily an MTT player I found working with this was both interesting and incredibly useful.
Here's an article that may also be useful. It's more directed at STTs, but has more general applicability: https://redchippoker.com/push-fold-charts-wsop-satellites/
PRO does have content in this area. Additionally we're developing some new products that I think will be right up your alley. More news on that in a few weeks.