Absolutely yes there is. Even the single point laser rangefinders like what are linked in the top comment here now are useful for consumer drones.

The hack people used to do (maybe still do?) was to combine a laser pointer and a webcam, and infer the distance based on where in the Y axis the laser appeared in the image that the webcam received.

This, which is many points in many directions, is much, much better, and it sounds like it will be cheap (at least much cheaper than these devices have been).