Answer: Topping usually does result in an unattractive tree. If you could prune it back by cutting taller limbs back to where they join side growing branches, you can lower the height while maintaining a natural look. This should also invigorate the tree, hopefully causing some new shoots to grow on the bare side which now receives adequate light.
This process may take a few years, but should yield better results in the long run.
Thanks for the question!
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