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.
facets faucets fasts fests fascitis fasciitis feasts feists fastuous fists vasts vests fossettes phaseouts foists fiestas vestees
faucets facets besets bests fests vests hests gests bassetts cosets guests miseats keysets nests pests recits reseats rests russets zests disseats tests wests missets assets bassets quests suets setts sets seats cetes geests zetas jests cossets gussets misseats knessets pesetas possets reests resets rosets wrests deceits tassets tsetse chests
faced facet facete faucet fazed