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.
studdie studio stud study stade stied stadia sueded statue sodded satiety situate stet stood staid sided sated stead steed stout sited state sauted citied seeded sotted sooted setout sedate steady seated suited sauteed
studdie duddie didie budded buddied eddied giddied caddied lyddite mudded muddied waddied cheddite