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.
colloid collied collide cold clod cullied collude could coled cloud culled colead cloudy cooled cloddy keloid coiled called collet cowled coaled gallied gullied collate clad clot colt gold clade clout clued yclad cloot cauld glide culti gulled callet killed gaoled cullet goaled clotty galled calotte culotte galliot galloot killdee quelled quilled
phylloid colloid loid cullied collide bellied allod allied jollied meloid bullied collied pallid rallied sloid xyloid dollied willied sialoid gullied phyllode jellied keloid gallied halloed helloed hilloed holloed hulloed nielloed gillied haloid ploidy sallied sullied dallied tallied cheloid hyaloid lid
callow collie colly coolly col