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.
heading hading heating heeding hating hiding hatting hooding hoodooing hedonic hitting hooting hotting hutting
fading lading reading goading hading kneading leading heading shading loading wading jading beading ding guiding padding budding quadding madding gating needing beating nodding adding auding coding eating bating ridding feeding siding codding radding pudding padnag cheating whidding wedding tedding doating dating sueding biding lidding feuding wadding heeding hating bedding readding hiding heating sating boating fating lauding godding voiding mating rodding seeding raiding ceding coating bidding kidding reding riding redoing niding seating dingo gadding hooding sodding reeding moating boding loiding doing aiding podding rating deeding dadoing duding tiding mudding redding weeding wooding chiding shedding