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.
curns currans carns corns cranes crowns querns croons cornus cairns crones cronies gurneys carnies careens carneys coronas carinas corneas corneous crannies guernsey currency guaranis guaranas carrions kerns grans grins karns kirns queerness guaranies greens kernes grains groans kroons groins groynes korunas cornice garrons goriness grannies grayness greenies greyness greenness
bourns mourns curns burns urns durns churns turns kernes wrens ferns earns horns grans ruins brins ornis pornos herns girns sarins rins irons currans kerns rouens gyrons morns runs wyverns frons yarns sharns sorns warns marrons trans ternes barns perrons reearns prunes barrens runes cairns bairns grins serins garrons kirns purins corns mirins morons herons syrens furans ernes journos burans learns girons pirns carns lorans korunas porns brans karns hyperons varnas airns firns sarans darns brens querns prunus bournes liernes cornus erns borons sirens bruins burins barons reruns neurons diurons tarns terns triunes pyrans warrens shairns shorans yearns
curn corny curran crony crone cranny crania crane cornua carn cornu cornea corn carny carnie carney gurney