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.
cheffed chefed chaffed chuffed chafed chevied sheafed chivied sheaved chivvied sheephead shaved shoved cheviot
reffed cheffed buffed boffed biffed muffed offed puffed refeed riffed baffed daffed doffed chaffed waffed pouffed beefed sheafed reefed feoffed coiffed huffed fifed whiffed chefed tiffed defied ruffed refed piaffed gaffed cuffed naffed miffed luffed leafed quaffed chuffed yaffed fed
chef chaff chaffy chief chuff chuffy