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.
noily noil nil knolly nail nill noel nolo knoll nelly newly nielli nala null
oily doily roily noily oil reoil noil gaily poilu moly colly coolly roil foley soil holly golly lowly hilly moil knolly lolly bialy silly daily illy lily dooly toil wholly wily wooly shily jolly bailey mooley gilly dilly coyly folly cooly coly jowly coil billy boil molly holy voila holey coaly filly hooly pily poly riley voile foil dolly doyly toile willy woolly chilly shoaly