I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
woolman woolmen whaleman wheelman whalemen wheelmen
dolman woolman plowman bellman fellowman flyman column leman mailman liman oilman solemn dolmen tallyman teleman tollman wheelman pullman whaleman woolmen