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.
toluenes tolanes towlines tolans tallness talons dulness talions delaines dullness dailiness dailyness
toluenes lenes leones lunes lunies alienees blueness vileness haleness juliennes maleness oleines paleness soleness xylenes wholeness