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.
praos pros prosy paras proso praus pyros proas prows prase prays prose pross parous porous pareos praise porose prossie pariahs purs pars paris pares pores pries presa pears pyres puris press preys perse parrs peers prees peres priss pursy purse piers pairs prese purrs peris prise parse pours hypers pursue prissy pooris paries pareus peruse purees piracy parries peeress peeries perries prez
praos ras rosy porose eros rows brays brass arose kaross arrays frows gross eras arrows barrows frays gyrose crass norias kouros arras braes areas grass morays prose cross pross kerrias gheraoes euros gyrase broos burros moras arias forays brows marrows brose aurous boreas hurrahs faros pharos ferias cuirass vireos surras toros serosa prows torahs hydras draws soras torous duros trays troys trois muras yttrias ureas charas cheerios dross chiros churros tiaras proas pharaohs guiros pareos nairas hydros taros heroes gerahs cirrose ceros rerose terras zeros varas saros hoorahs liras morros surahs sirrahs praus harass dourahs serows biros craws narrows pros karoos proso morass heros brios karroos raws auras erase koras ferrous bros burrows frass bras rose froes rias barrios bewrays borrows mbiras horas erose rase braws paras buras rais farrows varias hurrays eyras grows lauras furrows phrase rays grays horahs roes morose gyros boras hoorays serous zeroes porous hydrase hydrous harrows crows cerous cerias pyros terais murras maras cirrous curios morrows parous sorrows sierras prase vrows derays brosy giros suras trass toras serais prosy tiros durras douras sirras torose duras trows prays trios jarrahs tyros urase whereas charros drays cheeros choreas sharias yarrows
prao pro para parae prau pray proa prow pyro spray