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.
tetris tetras tetters teeters doters tatars taters titres tutors titers toters daters deters dietaries dotters totters tedders tatters detours tidiers tooters dieters touters titters dataries tawdries tuataras tuateras daughters tattooers daturas deodars dodders deodaras tutoress
tetris cauteries betters deters bawdries citers knotters ratters gaters satoris heaters ritters retries maters netters diaries otters daters sitars tawdries taters oaters boaters litres cooters sudaries notaries dearies feodaries matters meters letters derris nutrias fetters voters ruderies dieters paters dairies nitres lotteries loiters eateries quoters jitters footers quitters pouters mutters hysterias reutters trois butteries fitters dries tutors suitors waiters putters zedoaries peters titres tooters whitters caters cheaters tetras shatters tetters shooters souters totters shutters stirs wetters cutters goitres quatres cottars tries derries pewters biters attars dories couters niteries gauderies dotters batteries rotaries mitres metros rotters dowries hooters viators gutters hatterias motorise seaters catteries dietaries eaters matres meeters latrias tories noters fetors votaries routers outers nitros poetries niters looters litters butters quittors getters foetors quieters potters durries stories citrus redries beaters daughters batters writers knitters raters gaiters satirise hatters rioters lotters coaters natters terries ottars dataries setters tatters tatars nutters bitters liters motors retros satyrs doters coteries tres tors petters bettors yttrias terais cotters neuters gators baiters goiters rooters miters metres rotors tars hitters vetters guitars haters mooters kiters cuatros trios titters booteries feudaries tarries touters suiters utters powters sutras patters titers whetters waters jotters chatters teeters chitters potteries sheeters sitters toters shouters stars yatters
tetra tetri teeter tetter titre