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.
talker talkier dialoguer
balker bilker talker caulker sulker milker calker walker talkier sulkier lacker liker blocker flackery flaker laker blockier looker luckier flickery flicker colickier licker milkier pluckier sleeker whelkier hulkier shlockier bulkier chalkier flockier plucker lakier locker leaker balkier bleaker blacker baulkier slacker clicker flukier folkier flakier leakier clacker silkier slaker sleekier clocker valkyr slicker yolkier
talk talkie talky taillike talc talcky taleggio talooka taluk taluka tealike italic stalag stalk stalky