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.
audads aoudads audits auditees adits
dads aoudads doodads hodads audads deads steads tads stades dadas dados toads duds buttheads iodids gadids outadds todays stadias duads