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.
selfed sluffed salified salved slaved solved sulfid sleeved salvoed sleaved sulfide sealift sulfite sulfate sleighed sloughed sulphid sylphid
gulfed golfed wolfed selfed malfed rolfed vilified luffed sulfid jellified sluffed valved salved mollified halved loafed jollified qualified helved nullified leafed salified coalified calved solved fluffed delved bluffed shelved
self selloff selva sluff sulfa sulfo