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.
gooneys goonies goons coneys gooeyness gowns coons cones koines conies guanays coyness gunnies goannas guineas gayness guns cons kanes canes koans kines guans kaons gains gonzo coins conns conus canoes guanos quoins gainsay guanase
phoneys gooneys honeys coneys looneys moneys ones goonies boonies jones donees monies sones ponies loonies pones tones peones phones sheeneys tonnes toonies bonnes phonies hones koines leones sawneys bones lioness tawneys conies peonies zones hyponeas nones cones shinneys ons
gooney gone goon goonie goony agone