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.
chariot charity chart cheroot chorioid chert chard chared cherty chaired charred choroid sheroot charade choreoid shard short shirt chord chored shaird shared shirty shorty shroud cheered chirred choired churred sheared shortie
chariot riot barite heriot cardio carrot garote griot lariat parity parrot rarity tarot charity rot art
char chair chare charr charro charry chary sharia shariah