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.
pesades passades passadoes pesetas posadas passados pests pestos pastas pasts posts pastes pastis pistes posits pseuds pasties pistous possets posties pseudos
sades pesades passades tsades posadas tsadis daysides passadoes dissuades misadds seasides lysates quaysides misdoes passados asides sides sates saids sadis besides resides waysides