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.
flakier flaker flukier folkier flackery flaggier flockier flicker flagger flickery flogger filagree filigree valkyrie fillagree fulcra valkyr vulgar
lakier flakier leakier whelkier talkier sulkier slaker silkier clacker flukier milkier lacker laker leaker luckier hulkier shlockier balker balkier baulkier flockier chalkier walker folkier talker blacker sleekier slacker bleaker flaker pluckier bulkier colickier blockier calker yolkier
flak flack flake flakey flaky folkie