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.
knawes newies noways nowise
awes knawes yowes twaes towies pewees peewees owes newies lweis lowes howes ewes woes wees waws waes weewees yowies