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.
satrap satrapy strap strappy stirp strep strip strop stripe stripy stirrup stroppy
trap rattrap satrap strap drape tarp trip trop atrip bedrape satrapy stirp strep strip strop
satara stare astray stroy striae strew strawy story storey store stir stereo stere starry star satire seater sautoire sautoir satyr satori straw stray stria strow sutra estray