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.
kulaki kulak kolacky klik caulk clack cloak gulag klick
kulaki alkie tilak slake silkie saluki plack bleak cloak lake lakh laky leak alack laic lack black flack flak flake flaky folkie clack kulak nilgai pollack selkie slack talkie shellack