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.
alcade alcaide alcayde allocate alackaday alkyd algoid
alcade vellicate sulcate alcaide alcayde allocate blockade falcate locate collocate calycate colocate placate plicate reallocate relocate silicate delicate