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.
currans curns cranes grans corns carns guaranas guaranis currency crannies carrions guaranies cairns groans querns croons crowns crones grains carinas careens cronies corneas carnies gurneys carneys coronas garrons guernsey grayness grannies grins kirns karns queerness kerns cornus greens groins kernes kroons cornice groynes korunas
currans rains prawns perrons murrains guaranis marranos ranis roans barrens groans boranes brains terrains drains trains saurians warrens pyrans brans brawns cranes piranas parians marrons guaranas lorans grains garrons grans burans furans furanes durians serranos terranes sarans trans puranas shorans