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.
masseur massier maser mosser mossier mussier messier measure maiasaur muser miser mazer macer maiasaura mazier misery mouser mousier mahzor muzzier
masseur chasseur bossier lesser mossier mussier cusser pussier assure reissuer scissure dossier diseur tosser hisser tussur fussier massier mosser pisser fissure sieur messier fusser poseur kisser lassoer hissier issuer passer reassure guesser gassier sassier sissier tessera dosser tusser gasser wussier chaussure ser
masse mass massa massy amass mas