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.
setulose setulous sedulous stulls settles seatless stools steals sotols stalls steels steles stills stylus cedulas stellas seidels seedless steelies sidles stales stiles stoles styles
nodulose setulose delouse dulse footloose nodulous patulous sedulous setulous