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.
ptomain ptomaine pitman potman putamina pitmen potmen putamen
ptomain domain domaine domine domino toman automan footman goodman ottoman potman ptomaine radioman rodman woodman