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.
debase debs diabase dabs dibs dubs daubs tubas daubes dobies tibias dobbies doobies dubious
base debase abase diabase subbase bas gibbose rubasse subsea boas nubias sobas ribose abbas phobias ceibas bubbas obese subahs tubas abuse tibias subbass soubise obias bass baas jubas cobias obas bays babas abas bise subas bias jubbahs rubace shibahs