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.
clanky clank clunky clang clink clonk clunk clung cling clinic cluing clonic calling clueing coaling coiling colonic cooling cowling culling galanga kaoliang
clanky lanky lank linky blank flank flunkey flunky clank clunky plank plunky slank slinky