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.
sylvite sulfite solvate salivate sulphite solved slaved slight salved sylphid sulfide sulfate sealift salvoed sleaved sleight sleeved salified sleighed sulphate sulphide selfed sulfid sluffed sulphid
sylvite alleviate bloviate eluviate valvate volvate vulvate illuviate cleveite solvate sulfite