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.
fairly farl fierily frailly farle ferly frail frilly freely virelay furrily virally virl furl frill viral feral ferial ferlie ferrel ferule verily virile ferrule gharial variola variole
fairly whirly girly frailly knurly ruly birle curly riley ferly dourly viral whirl hoarily hurley girl airily hurly queerly cheerly merrily sourly yarely sheerly parlay pearly purely sorely surly charley furrily direly dryly tirl warily wirily wryly roily marly aerily verily frilly fierily eerily birl chiral burly rely gnarly nearly barley charily hourly leerily virl dirl merely early barely gorily wearily truly tearily drily dearly shrilly surely sorrily rarely poorly burley parley cheerily yearly
fairy fair far fir fear afar faerie faery fare faro farrow feirie fiery fire firry vair fiar afire