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.
maundy maund mound maned maenad moaned manned monody hymnody mind mend manat monad mined manta minty menad mondo mount meant monde menudo monied manitu mantua mehndi mooned manito hymned manatee manitou mannite manteau
maundy undy sandy candy punty pandy mound hymnody fundi undo found runty hound handy vaunty tuned sound windy shandy jaunty rindy county bendy benday randy pound noonday maund lindy monody round bandy bound bounty bund unde dandy aunty fund wound shindy
maun mun man mawn muni moan meany meanie mean mano many manna mania mane mana main muon