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.
passados passadoes passades pseudos posadas pesades pasts pussytoes pastes pastis pastas pestos pasties possets pests posts poussettes pistes posits pseuds
passados sades sadis saids misadds misdoes passades passadoes pesades posadas tsades tsadis