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.
favus favas faves fauves vavs fives vughs foveas
favus haves paves nevus naevus leaves mavis lavas kavas guavas laves caves javas deaves soaves waves revues shaves raves heaves vavs lavs reaves pavis oaves naves loaves knaves aves avos vaus eaves favas faves tavs zouaves weaves saves sheaves