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.
mediates mediatize metates mutates motets mattoids
mediates radiates fatuities dates biotites auditees tates dites deities petites notates nutates ideates redates sedates states cheddites mutates viduities jadeites potatoes quiddities lyddites metates nidates nudities oddities pettitoes caudates iodates podites ratites rotates situates statues chedites