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.
belive believe belief bolivia bailiff
alive relive belive olive live delve solve vulvae slave helve salve believe love relief clove belief lave lowlife slieve calve glaive sylvae relieve glove releve lief halve clave saliva lieve silvae life valve shelve
belie bel belay bell belle bellow belly below abele abelia obeli obelia