There should be a global congress of experts dedicated to standardizing the naming and spellings of historical/archaeological/geographical names around the world. Their job would be to act in ways similar to courts of justice and listen to all parties who advocate a certain name over another. Each party would be required to support its case with as much information as possible. This congress would then deliberate upon the matter and then, when they feel they have a satisfactory amount of information, they would vote or otherwise come to a decision regarding the proper name that should be applied to the location in question.
People or representatives in this congress living around or representing the area where the place to be named is located should have a disproportionately larger say in the matter.
Atlases, dictionaries and all other reference or educational publications should be bound by the rulings handed down by this congress.