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.
kaiser kisser gasser causer gassier gauzier queazier causerie queasier gazer caesar cusser cozier quasar cosier caesura goosier guesser quizzer caesurae
miser seiser poiser riser wiser raiser kaiser ser sere issuer hazier masseur jazzier newsier ricer goosier fussier juicer juicier muser maser leaser looser baser mossier causer seizer rouser rosier boozier lassoer sassier gassier poseur suer pauser cusser hissier zooier dicier choosier choicer cheesier chaser wowser sera wheezier tusser tessera dozier douser dosser dizzier deicer queasier muzzier sizer pacier cosier nooser racier sieur rooser osier lousier fuzzier icier passer houser hosier loser sear voicer raser gauzier messier hisser busier mosser fizzier lazier user mussier mouser kisser gasser nicer vizier cozier misery noisier mousier massier easier queazier fusser whizzier bossier hawser lesser hosiery visor seisor oozier lacier poser laser saucier pisser fozier guesser pussier hoser seer geyser reissuer rosery sissier nosier sizier dicer diseur doser dossier dowser teaser tosser mazier woozier wussier chasseur chicer chooser chouser
kas kis kaas kaes kays keas kiss kissy koas kois kaiaks kakis okas skas skis ukase