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.
cubers cabers cobbers cobras cowberries gabbers goobers kbars kabars kebars gabbros
bobbers cobbers bibbers jibbers fibers fibbers goobers tabers webers jobbers daubers gibbers hobbers lubbers dibbers tubers gibers jabbers cabers robbers ribbers subers dobbers sabers sobbers libers cubers dubbers jibers yabbers dabbers gabbers lobbers mobbers sobers tubbers rubbers libbers nabbers sabres labors bros ribiers gabbros bras burs kebars hybris tabors zebras bebeerus bears biers kbars bris dobros sabirs abris bars libras debris hubris kabars rebars sabras cobras fibres debars dobras beers