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.
rivals reveals rivulose revalues reavails ravels rifles revels raffles riffles refalls refiles refills reviles raviolis reveilles refels refeels reflies reflows refuels ruffles roofless
coaevals rivals ovals coevals buffalos befalls foals kevils evils gavials valse beefalos weevils devils reavails avails fails veals falls novels bevels vales false ravels vails cavils reveals refalls revels kevels hovels dewfalls gavels devels vials navels levels offals phials mughals shovels
rival revalue arval frivol privily drivel trivial trivially