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.
daggas dags dagos degas dagoes taigas degauss doggies daks dugs digs tags dogs dawks takas teggs togas decays teguas
daggas quaggas gas togas muggs megass degas sagas vuggs saigas reggaes teggs yogas ligase haggis eggs gewgaws geegaws iggs hoggs ragas gigas vigas raggs jaggs gaes noggs miggs loggias laogais gays gigs biogas goas agas bagass gags taigas teguas yeggs yugas
dagga dag dago doggie doggo doggy