Im working on a promo video where the video will consist of 3 to 4 videos running at the same time with one of them being the presenter/commentator.

I know this cam be done in pan/crop and track motion, but I want a tool to help automate the process and allow for shaped crop boxes, say a star shape for the commentator.

I would rather spend money on tools than editing. Where can I get the tool?

Thanks