If you are searching for alternative terms for the word 'hat salesman,' there are several options that you can consider. A few popular synonyms that you might want to consider are 'milliner,' 'hat maker, and 'haberdasher.' These words are commonly used to describe individuals who specialize in the business of selling hats. Other related terms including 'headwear merchant,' 'cap vendor,' and 'headdress distributor' might also work well depending on the context. Whether you are shopping for headwear or writing about the hat industry, using these alternative words can help add variety and depth to your vocabulary.