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.
streaky streak strake streek stark stirk stork strick strike stroke strook struck stearic steric satiric satyric
stare stere stereo store storey straw strawy stray strew stria striae sutra astray estray