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.
colonic clonic clinic kaolinic clonk cooling coiling cowling coaling galenic clink clunk clang clank cling clung klong clanky cluing clunky kalong calling clueing culling gaoling goaling
clonic colonic alnico clinic galenic kaolinic melanic pleonic pollinic selenic
colon colone coloni colony clon clone clown colin