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.
queasier queazier quasar quizzer guesser gassier causer cosier cusser gasser kaiser gauzier goosier causerie gazer caesar cozier kisser
easier queasier kaiser baser gassier bossier osier mussier noisier mossier passer pussier raiser mazier maser rosier leaser sissier laser dossier queazier wussier gasser cheesier goosier busier fussier sieur hosiery hissier hosier hazier nosier mousier newsier messier pacier pauser racier massier lousier raser lazier sassier lacier sizer hawser teaser causer chaser cosier choosier ser sir
queasy quais quasi quass quassia quays queazy queys aquas quags oquassa