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.
lazier lacier lacer laser lazar leaser lassoer lousier loser lesser lessor looser leisure
boozier sizier hazier gauzier fizzier cozier lazier fuzzier jazzier woozier vizier fozier dizzier oozier mazier dozier queazier whizzier muzzier wheezier buzzer riser juicer newsier voicer fussier vizir beezer gazer lousier hazer nicer hosier sizer queasier pussier massier rozzer sassier choicer cheesier messier pacier easier gassier boozer mousier deicer fizzer dicer seizer goosier saucier bossier seiser quizzer whizzer geezer wiser juicier sissier racier dicier ricer noisier lacier dossier nosier busier osier mossier mussier zero kaiser hissier rezero icier rosier sieur mazer miser zooier poiser raiser jazzer razer hosiery doozer cosier dozer wheezer wussier chicer choosier
laze lazy liaise blaze glaze glazy plaice plaza