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.
passadoes passades passados pesades pussytoes pastes possets pseudos posadas pasties pasts pastis pistes pastas poussettes posties paucities piosities pests posts
passadoes sades misdoes passades passados pesades dissuades tsades