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.
femme feme fem fame fume foam fumy
femme eme deme seme pommee mome meme mammey mammae emeu emmy feme heme gemma gemmae gimme gemmy gimmie jemmy jimmie cammie commie lemma mammee mammie mime neume pommie summae tammie