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.
sharped chirped chirruped chiropody
carped warped sharped harped craped trapped chirruped burped rewrapped groped raped rapped reaped riped roped wrapped siruped bewrapped chirped crapped creped griped larruped cirriped syruped torpedo urped carpet draped frapped
sharp sharpie sharpy charpai charpoy sherpa