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.
aggros aggers agarose aggress agars across agoras agrees agrias augurs auguries acres acarus
aggros rockrose diggers rigorous jackeroos grows gars vigoroso vigors cross laggers gaggers luggers guiros buggers beggars muggers micros buckayros crows joggers sucrose chiggers taggers daggers picaros augurs regrows gross waggers naggers eggars curios cigars huggers saggers jagras seggars niggers foggers rigors keggers macros muggars baggers buckeroos kaross loggers cougars karoos agars vigorous vaqueros across karroos jackaroos riggers decorous buckaroos jiggers eggers eagres necrose saguaros jaggers saggars hoggers ruggers agarose muggurs squarrose tuggers kouros recross aggers ogres sugars doggers checkrows chuggers
aggro agar agger agora agorae agree agria