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.
chacma
chacma guaiacum digamma dicamba squamae squama magma leucoma coma gama agma agama acme gamma gamba gamay jicama
chachka check chic chica chick chickee chico chock chuck chucky shack shacko hatcheck chatchka chatchke chechako