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.
corneous cornus corneas corns cranes crones cronies cornice coronas carnies carneys crannies goriness carns curns cairns kernes crowns croons korunas gurneys careens groynes carinas currans greenies grayness grannies carrions greyness queerness greenness guaranies karns kirns kerns grins grans grains greens groans groins kroons querns
erroneous corneous ruinous arenous burnous cernuous tyrannous uranous urinous
cornea corn carney coreign cornu cornua corny corona coronae crane crone acorn scorn