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.
daube daub dauby dab dub tube tubae dobie doobie dib tab tub deb doughboy doby tabu tuba
daube abbe babe baubee jube cube lube mabe maybe nabe rube sabe daub dauby tubae tube