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.
stark stork stirk strike strook stroke strick streek streak strake struck stearic streaky steric satiric satyric hysteric
stark dark darky tarok trek turk autarky baidarka bidarka stirk stork
star stare starry strawy astray straw stroy story striae storey strew stray stir store stereo stere stair sitar satara stria strow sutra estray