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.
killdee killed kiltie collude quillet collide quilled kilt guild gleet glade glede kilty gleed clade glide keloid gallet called callet collet gulled culled gullet keeled cullet gleety coiled galled guiled galleta quailed galeate colloid gallied gullied collate cullied collied quelled galette gallate
killdee allude ballade phyllode illude collide collude oeillade