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.
cirriped cirripede siruped syruped
riped griped cirriped siruped chirruped cirripede warped larruped tripped groped torpedo gripped draped creped carped craped harped burped roped ripped raped syruped dripped tripod urped chirped sharped