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.
aromas arms arums arames armies aurums
aromas chromas neuromas proms barrooms rumbas rooms grooms roms gramas corms dayrooms brooms proems dioramas dramas tearooms traumas uremias bromos roams varooms chromos hyperemias norms brahmas caroms primas bromes forms carroms gorms grammas karmas viremias marimbas chromes vrooms kormas promos seriemas dermas dorms taramas teraohms uraemias worms showrooms