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.
chics chicks chicas chicos chickees checks chocks chucks shicksa chigoes chuckies chugs cheeks chokes chooks sheiks shiksa shikse chegoes cheques chukkas sheikhs shikseh
chics micks licks chicks wicks tics dicks sicks ricks pics picks picas nicks mics micas hicks ficus laics quicks kicks guaiacs hoicks wricks sics ticks whigs chicas chicos yoicks
chic chica chick chickee chico check chigoe chock chuck chucky hitchhike chachka chechako