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.
sootily stilly sotol stool still stile steely zooidal seedily stoolie styli stull style stole steal setal steel stele stall sadly stale sidle stela sedile seidel settle stelae stelai stella sedilia steelie
sootily motile wittily doughtily stilly ruttily fattily haughtily hotly cattily goutily doily bodily moodily motley knottily nattily nuttily pettily meatily dottily tattily chattily til