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.
donne donnee done tonne donna donee don dene dune tone dyne dine tonneau down dona downy toney diene duenna toonie townee townie din dan ton dun den dino tune toon dawn town deny tony dean tine deni tyne
bonne donne tonne one koine johnnie cannie cone coney honey conn benne lone loonie panne jinnee penne pone sonny zone donee gooney monie phone shinney tone nine looney hone nannie money boney bone gone goonie leone bonny bonnie none donna phoney hyponea pennae pinnae sone zonae done donnee toney toonie shone