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.
gourami gorm gram grama gramme gramma gremmie coremia corm grum cram grim korma grimy groom cream grume grime crambe crambo creamy curium corium corymb gremmy quorum caramba crummie