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.
ferreous ferrous ferries feres farrows furrows faeries furious fears fours frees fires faros frows fores fares frouzy frowsy vrouws fierce feuars vireos ferias veeries various foresee foresaw furioso gharries gheraoes furs firs frass vires viers verse fairs fiars fries frays veers froes verso varus virus vrows forays freeze frieze frisee frowzy furies pharos
ferreous ferrous torous serous cirrous cereus porous pareus grouse crouse roues rouse arouse aureus aurous bureaus furious reuse various vireos vrouws carious carouse curious pareos parous rearouse cerous serious hydrous uraeus res