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.
cymene someone semen seamen symbion
cymene men laymen gamine commune humane foemen immane amen bowmen famine baymen bemean ramen numen amine mine semen daimen diamine tamein chimney yamen ammine immune lomein hymen nomen omen rumen mien menu meno mane mean noumena vimen imine cowmen lawmen limen lumen seamen someone demean domine women showmen yeomen