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