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.
foley fley folly fly volley flooey foully file flee flue floe foal flay flea flew vole fowl foul fool foil felly flawy folio feyly fille voile filly fully folia follow flooie valley felloe faille fil flu ghoulie fell full fill viol flow fuel filo vale feal flaw feel fall fila fail vile
holey mooley foley ley ole gluey coly hooly fley colly coaly bole bailey flooey golly coolie jole jolly blooey bluey coyly joule haole gley mulley shaley woolly cooly wholly tole coolly alley folly noily riley oleo mole poly role solei dole galley moly hole looey vole hoolie doyly pulley volley jowly muley lowly molly hoyle voile holy cole gulley boule dooly doolee sole holly knolly oily olea pole valley lolly doily roily dolly doolie doyley toile whole woolie wooly shoaly