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.
cleaves claves calves clavus clevis cloves glaives clefs gloves clivias calfs coalifies califs cliffs caliphs cloughs
cleaves leaves sleaves deleaves calves delves sleeves valves slieves releves halves pelves glaives claves elves slaves helves levies levees laves relieves selves slaveys believes loaves salves shelves