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.
fruitier fruiter fritter frettier frater fretter fioritura fioriture forrader frotteur fioratura fioraturae
fruitier brattier tartier rewriter prettier partier groutier critter courtier grittier carrotier heartier fruiter fritter frettier chertier troutier bruiter artier grottier wartier triter dirtier purtier portiere quartier gritter rattier cowriter rioter ritter rootier ruttier writer shirtier
fruit fruity frit ferity fritt afrit