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.
hulked holked hillocked hellkite helicoid
balked calked chalked holked sulked walked bilked yolked baulked milked talked hulked caulked silked bulked clacked relocked blocked fluked laked gleeked clucked plucked polkaed leaked sleeked flicked lucked clocked alkyd slacked shylocked locked shellacked flocked slaked rollicked relooked lacked cloaked blacked hillocked liked lekked flaked licked looked clicked talcked flacked slicked cleeked flecked