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.
rezero razer rozzer reissuer racer raser razor ricer riser racier raiser rooser rosery rosier rouser reassure
zero rezero boozer beezer serow jazzer cozier gazer boozier quizzer muzzier mazer buzzer oozier rozzer seizer sizier doozer dozier wheezier whizzier razer mazier fizzer queazier fizzier fuzzier viceroy vizier hazer hazier fozier geezer gauzier jazzier lazier cero cicero sizer dizzier dozer wheezer whizzer woozier
raze frees drees prez prees grees creese freeze breezy razee breeze brees resew resee reseau rees trees