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.
gasket casket casked cascade casqued
basket casket bosket musket gasket sect weskit skat tsked skeet dusked skit disked asked resect muskit bisect busked basked risked husked dissect casked tasked masked tusked socket whisked