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.
colds coleads clads golds clods colts collides colloids colludes clades clouds caulds collets colitis collates gleds clots cults glads claddaghs clouts culets guilds cloots cleats glades gledes gleeds glides cultus callets cullets keloids calottes culottes killdees quaaludes
bolds folds molds wolds olds holds colds golds plods wields lads sloyds volts woalds wilds sleds tildes allods phylloids shields loids balds chields lodes gleds velds yellowwoods sialids loads childes cheloids colloids haloids dildos faulds lids phyllodes halids guilds salads caulds jolts bields dolts silds sloids glads welds builds solids holts gelds milds wealds keloids bloods floods gilds clods melds meloids reloads moulds bolts molts fields elds payloads colts felids clouds ballads naleds clads hyaloids yields
cold clad acolyte gold could colt claddagh clade clod cloddy coaled coiled colead coled collate collet collide collied colloid collude cooled cowled acold scold