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.
wrastle wrestle rustle restyle resettle rustily resaddle rostella roseately recital
castle wrastle style stole stile eustele lastly nestle pestle pastel pustule rustle beastly restyle wrestle diastole bastile bustle pistole ghastly stale vastly hostile hustle istle jostle justle coastal misstyle hypostyle pastil stele systole whistle
roast wrest wrist wristy worst wurst