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.
avers aivers averse aviaries afars affairs affrays avarice affaires
avers fevers reavers sivers waivers hoovers overs hovers levers lavers louvers cavers aivers givers quavers movers revers weavers covers rievers wivers shavers shovers divers livers reivers shivers havers beavers wavers rivers quivers fivers vivers ravers pavers severs leavers lovers newwavers savers heavers weevers rovers jivers piaffers laughers deifiers niffers gauffers reifiers differs whiffers leviers goffers lifers puffers favors offers loafers feres fears verse laveers wafers gophers chevres rivieras chauffers chaffers livres woofers syphers bouviers refers defers liviers doffers cyphers ciphers roofers feoffers navars reveres coughers spheres savors heifers vars reverse gaffers defiers zaffers averse reverso bevors buffers louvres rivieres gofers fifers diverse viers knifers coiffeurs veers oeuvres reoffers reefers duffers hoofers weighers coffers sighers chafers chaufers roughers chauffeurs verso quaffers suffers