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.
starer starrier storer steerer stirrer
darer starer dearer tearer patterer totterer potterer deterrer fetterer tourer starrier jitterier caterer tawdrier chatterer waterer roturier putterer letterer trier miterer batterer loiterer adorer stirrer couturier bitterer litterer steerer titterer mutterer storer truer maturer terrier drier dourer waterier dodderer utterer direr butterier tarrier pewterer powderer retirer tearier torero shatterer
star stare starry strawy astray straw stroy story striae storey strew stray stir store stereo stere stair sitar satara stria strow sutra estray