How to fix my “snaggletooth”? (Photo)

You should seriously consider arch development to give your "snaggle tooth" a place to erupt. Your canine is erupting outside of your archform because there is not sufficient space. By developing your arch (with a simple, comfortable, removable appliance) you will not only create the needed space for your canine to properly erupt but you will also create a broader, more beautiful smile.Good luck!

The best option is to be conservative and to do some minor tooth movement to put the canine into the proper position with Invisalign. I would not veneer the tooth or so any other cosmetic procedure to alter the look of the tooth