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.
gaudily goutily caudally caudillo godly cuddly goodly caudle caudal cattily quietly cuddle cutely guttle cadelle cattail cuittle
gaudily bodily shadily tidily seedily ruddily reedily puddly needily muddily moodily loudly goutily cuddly giddily headily beadily daily bawdily audile audial doily dilly muddly nudely readily rowdily rudely dowdily weedily shoddily