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.
coronas corneas corns cornus crowns crones croons korunas cronies carinas corneous curns carrions carns cranes kroons groins groans cairns garrons carnies groynes currans carneys cornice careens guaranas crannies goriness grans grins karns kerns kirns grains greens kernes querns gurneys
coronas tronas guaranas gyrons farinas frons browns maroons morrions morions neurons kroons frowns groans borons piranas crowns puranas crones diurons carinas drowns corneas roans virions turions pereons irones korunas hyperons barons varnas girons heroins hernias herons marinas morons marrons neurones durions groins irons garrons perrons croons prions arenas pyrones jarinas drones carrions trones chorions
coronae corona corn cornea cornu cornua corny crone crony croon crown acorn scorn