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.
gaseities gasts caseates casettes gazettes cassettes castes gussets gustoes casitas coesites casts gusts quaysides coasts cosets cossets keysets cassatas costs kists
gaseities cities coesites niceties paucities piosities raucities recites resites cecities societies