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.
cursor cursory curser courser crozer curiouser cuirassier creaser corsair crosser crasser coarser crozier crosier cruzeiro caresser creasier crosshair gorsier greaser coercer cruiser crazier grosser carouser grassier greasier
cursor cursory tressour verser hoarser coarser courser curser bursar parser nurser pressor purser sarsar derisory dorser terser worser
curs curse carse curios cures curacy cuirass cruse crus crosse cross cars crissa cressy curious crass course corse cors curassow curies curiosa curries cris cress currs scurries