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.
parleys parles parlays paroles paralyse parolees proles pearls parols parrals parrels parlous peerless pyrroles purls purlieus payrolls paralyze perils prills prowls pyrrols perilous pyrolize pyrolyze prelacy pyrolas
barleys burleys charleys parleys hurleys orles hourlies ferlies peerless earless oarless ferules hairless birles trolleys girlies carless fearless hurlies furless farles ferrules whirlies charlies chorales merles rales gearless proles doorless arles carles paroles parlays heirless parles warless tearless pyrroles curlews trawleys barless riles roles rules airless morales cheerless yearlies
parle parley parlay parol parole parolee parrel pearl pearly prole sparely