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.
steno stein sateen sitten stun satin stony stain sedan seton stane stone sadden satiny seitan sodden stoney sudden soutane
steno ten poteen fatten neaten lutein laten latten kitten stein patten ketene catena gitano rotten ratten sateen potteen tauten whiten gotten oaten quieten boughten beaten neoteny mitten latino litten batten lateen eaten paten bitten butene written retene sitten ratteen teen heighten wheaten shotten