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.
flockier flicker flakier flukier folkier flackery flickery flaker flogger flaggier fulcra flagger filigree valkyrie valkyr
blockier luckier shlockier pluckier flockier colickier plucker clicker bulkier silkier flakier baulkier balkier flickery lakier hulkier lacker blacker sulkier whelkier clacker licker blocker folkier clocker flackery locker milkier flicker flukier slacker leakier slicker talkier chalkier sleekier yolkier
flocky flock floc flack fleck flecky flick