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.
clacked clocked clucked clicked cloaked calked cleeked clagged caulked gleeked glaiket calqued clogged cliqued calycate colocate colligate collocate collogued collect glaikit glugged
lacked flacked shellacked slacked clacked blacked rollicked clucked flicked plucked flocked clicked balked slaked walked talcked laked flaked lucked flecked blocked hillocked slicked cloaked calked relocked leaked placket locked clocked licked chalked talked shylocked
clack click cloaca cloacae cloak clock cluck