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.
virions frons firns fieriness frowns varnas wyverns farinas fairness farinose variance ferns furriness furans farness frounce furanes phrensy
carrions turions prions chorions virions morions morrions durions rins dourines maroons borons trones pyrones neurones marinas hyperons neurons serins kroons sereins groans pereons frowns girons marines parians reins drains murines urines sarins trains terrains purines drowns diurons sciurines trines serines grins jarinas irons rains neurines barons purins groins brines ruins rinse grains brins bruins irones mureins frons merinos heroins coronas herons croons crones brains murrains chorines carinas roans perrons saurians farinas mirins marrons browns pereions crowns garrons morons burins gyrons drones durians taurines terrines triens tronas shrines