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.
berate borate brat brute beret bratty barite baryte burette beretta berried bort brut brit brad barrette berretta beard borty broad bread britt bruit buret braid brede boart breed barret baryta bready bright byroad biretta burrito birretta
aurate prate narrate karate grate pirate rate derate cirrate gyrate lyrate phorate deaerate berate carate irate urate serrate crate ferrate hydrate aerate cerate borate orate curate rat hereat quarte terete karat rato ferrite write aortae cowrite variate kraut seriate baryte diorite groat sortie garrote drat shortie whereat cerite great virtue torte barite arete trite irade aureate carte trait brat derat parade rote rewrote errata jurat pyrite carat prat curite create garote grade cowrote laureate grat wrote trade verite korat rewrite brute forte frat norite corrade lariat krait tirade muriate rite rete treat yperite charade tiaraed
bra bear beer beery berry bewray bier bora brae braw bray bura