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.
ideates iodates idiots iodides iodids
ideates mediates states sedates rotates radiates outeats nutates notates nidates mutates metates caudates dates jadeites iodates videttes vedettes teats tates potatoes redates satieties situates statues