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.
calicos calicoes colics clicks clogs gallicas cowlicks calks calix caulks klicks clocks clucks clacks calques galagos cloques cliques glucose calx glaucous killicks calyx clags kliks cleeks cloaks cologs gloggs claques cloacas colugos kylikes
calicos laics talcous slicks celiacs relics licks locos bellicose beylics flicks flics calicoes clicks colics cowlicks gallicas killicks klicks maiolicas rollicks silicas talcose telcos