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.
fitly fatly featly fiddly vitally fattily fatally vital fetal fatal fettle fiddle foetal footle futile vittle fauteuil feudally
fitly fatly needily patly nuttily rattly mutely nattily motley ruddily reedily seedily lately meetly cutely stilly doughtily goutily tattily dilly tidily doily weedily cattily whitely beadily chattily bodily shadily bawdily daily featly sootily neatly outlay nettly pettily muddily knottily moodily rowdily readily ruttily quietly meatily coital dottily fattily gaudily dowdily idly tautly hotly title giddily wetly haughtily wittily vital chital headily shoddily