Small InVEST project ideas

Dear all! I have a small university project that I need to do related to ecosystem services. I was thinking about doing a small InVEST study for the project, but I’m not entirely sure what I should study. I’ve got some decent experience now with InVEST carbon and the scenario proximity generator, but those projects were very large and detailed. If anyone has any ideas about a small project that could be undertaken using any of the InVEST I would be very grateful. Cheers