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.
terete terret tret treed treat teared territ tiered turret teredo treaty trot tart tort tired tarot tared trout torot tread trait tarty torta derat dreed tyred deride tarred toured trouty deaired
arete rete terete ret phorate ferret write berate curet jereed breed aerate buret freed carate orate laureate rede caret grate retie borate narrate rate irate rite garret ferrite greed diorite whereat turret surety tret treat pirate terret hydrate carte proette cruet deaerate create cirrate reed rewrite cerate cowrote pyrite karate prate hereat curite barrette garote pardee garrote hereto yperite great preed dreed jerreed wrote serrate brede greet ferrate gyrate lyrate quarte cerite baryte creed curette crate aurate ariette aureate verite brute barret curate ferrety syrette derate cowrite barite fret beret pirouette norite pureed rewrote rote torte forte treed trite burette urate whereto
dere terry tetri teeter stereo tear teary terai terra terrae tare tire tier tore tree trey tyre steer stere strew tetra uteri