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.
gobies gabies goboes gobs gobos cobias kebbies cubbies cabbies cobs kobs gabs cobbs cubes kibes kobos kibbes kibbis kibeis cowboys kibbehs
babies newbies cubbies rubies tabbies hobbies rabbies cabbies boobies dobies doobies lobbies gabies yabbies rubbies loobies dobbies gobies kebbies hubbies bubbies bobbies rabies tobies bes bis kibbis nabis sabes vibes gibes hebes bise abbes beebees cubes gybes ibis syboes obeys mabes kibes obes hoboes bees bias abbess jibes obias bawbees lobes phobias kibbehs pubis bios rabbis goboes rebbes lubes oboes soubise obese abbeys nabes cobias babes baubees kibbes maybes obis daubes nubias ribes tabes bibs robes jubes bize phoebes bice rubes kibeis tabbis buboes tibias pubes tubes beys yobboes