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.
padnag padding patting podding pudding petting pitting potting pouting putting
padnag niding leading biding budding godding kidding gadding siding padding dang bidding hooding hading radding podding readding ceding madding redding wading shading weeding reeding feuding riding boding heeding feeding wooding fading sueding lading duding loading tiding codding kneading needing reding coding reading pudding raiding heading jading beading ding sodding nodding goading quadding guiding adding auding lidding seeding bedding mudding dong wadding loiding tedding lauding deeding dung chiding hiding wedding aiding rodding voiding ridding whidding shedding