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.
reliever rollover rolfer
believer reliever liever delver leaver lever liefer liver livery elver flivver clever silver sliver deliver delivery cleaver shelver
relief relieve relievo releve relive rilievi rilievo prelife