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.
salified selfed sulfid salved sulfide sulfite sluffed sealift salvoed sleighed salivate slaved solved sleaved sleeved sulphid sylphid sylvite sloughed sulphide sulphite slight
vilified jellified jollified coalified qualified mollified nullified salified