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.
prions pereions purins parians pyrones pereons purines perrons porns pirns pruinose hyperons prunes prunus pornos preens pyrans prawns prince piranas puranas pyrenes poorness pureness pyranose paranoeas paranoias prance
virions durions chorions prions turions pereions carrions morions morrions cairns bairns farinas ruins merinos firns chorines carinas frons groans hyperons marines airns groins neurons marinas irons pirns irones barons heroines pereons bruins sorns shairns sarins tronas triens terrines taurines durians drones dourines parians sciurines serines morns maroons purins moraines rins heroins coronas murrains kroons frowns corns rinse kirns porns croons burins saurians mirins brains murines browns marrons reins rains brins roans crowns brines perrons grains herons crones mureins sereins horns gyrons neurines borons garrons morons purines jarinas girons girns serins pyrones diurons drains drowns neurones terrains trains trines trones urines grins shrines
prion parian perinea prone purin purine pyrone apron