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.
claques cliques cloques calques colloquies colleagues clags collogues clacks clucks cleeks cloaks cloacas colugos calicoes glaucous glugs kilogauss calks culex clogs caulks clicks clocks colics cologs gleeks gulags kulaks calicos galagos kylikes
claques plaques leagues calques cliques cloques colleagues colloquies laliques plagues pulques reliques siliques
claque calque clique cliquey cliquy cloque