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.
caulker calker clacker claquer clicker clocker claqueur colickier calcar clogger calcaria cliquier cloggier
caulker sulker chalkier walker talker flukier balker balkier baulkier bilker laker bulkier liker hulkier flaker calker milker milkier plucker slaker folkier silkier sulkier talkier whelkier yolkier