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.
stimy stime stymy steamy stemmy stem stum satem steam stoma sodium sodomy stemma stymie zootomy
stimy time atomy betime retime stime stymy zootomy daytime teatime chowtime shittim showtime