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.
coldly cloudily colloidally colloidal gladly clitella guiltily
baldly mildly coldly childly boldly wildly bloodily aldol solidly fluidly palatally lewdly loudly fluidally cloudily validly gladly veiledly pallidly gelidly dillydally colloidally
cold clad acolyte gold could colt claddagh clade clod cloddy coaled coiled colead coled collate collet collide collied colloid collude cooled cowled acold scold