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