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.
clevis clivias cleaves clefs cliffs cloves clavus califs calves claves caliphs calfs coalifies gliffs gloves kalifs cloughs glaives kaliphs
levis clevis levies believes bolivias clivias pahlavis pelvis releves relieves relievos salvias sleeves slieves televise
calve clave clavi cleave clef clivia clove