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.
zebras zebrass sabras sabers sabirs sabres sobers subers sobbers subrace subareas suberise suberose suberous
bras zebras sabras cobras libras dobras hybris sobbers rubbers hubris fibres cabers nabbers gibers bros sabres lobbers gibbers jibbers fibers dubbers kabars bibbers daubers webers tubbers tabers dobros dobbers debris zebrass gabbros subers brays jobbers libbers kebars cubers fibbers labors burs jibers sobers libers jabbers gabbers hobbers sabirs lubbers mobbers kbars abris bewrays subareas bobbers brass goobers cobbers ribbers braes boreas rebars robbers sabers braws bars dabbers debars dibbers buras bris boras tabors tubers yabbers