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.
salivate solvate salved salvoed sylvite sealift sulfate sulfite sulphite salified sulphate solved slaved slight sleeved sleight sulfide sleaved sleighed sulphide selfed sulfid
salivate alleviate bloviate elevate eluviate valvate volvate vulvate illuviate califate clavate kalifate reelevate solvate
saliva salify salve salvia salvo slieve