Does Flight Aware offer a way to track which FBO an aircraft will use prior to landing at the airport?
No. This information is not given to controllers until after the plane has landed. Many pilots will just go to whichever FBO is closest to the runway they were assigned to land on, or whichever one has the cheapest fuel, or whichever one has the prettiest sign, or whichever one is the… well, you get the picture. Many pilots don’t even know which one until they get there.