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.
terms derms trims trams tearooms teraohms dermas dermis traumas taramas yttriums tiramisu drams dorms drums dirams dramas dreams durums dayrooms dioramas dormouse
berms germs terms derms perms herms aurums formes seriemas dermas fermis proems bermes rams firms rums biremes quorums prams arums caroms crams rims roms charms warms proms rearms dreams dorms norms jorums larums kormas kermes grams cremes corms rems karmas gorms hareems creams arms harems marrams durums reams forums prims jorams zirams brims harms kermis serums trams carroms vermis barms vermes forms forams ferrums farms breams dermis dirams drams drums ihrams trims worms chirms
term derm derma tearoom teraohm tram trim trumeau tryma iterum