I fly at or below 400'. I find detail and perspective in video more interesting for the audience rather than views out an airplane window (or views of an airplane window coming at you!)
Where do I fly? Over lakes, the ocean, the boardwalks, the lighthouses, amusement parks, the beaches, surfers, ball fields, dams, cranberry bogs, along lagoons, ocean inlets & boats, NJ Vietnam veterans memorial, etc.
Chase a car you are a passenger in, rising or descending shots at slow speed, fly along a road and go right off a cliff with the camera, fly around a point (like a fountain, statue, or monument, maneuver through the forest, etc.
Hope this helps.