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.
poufed pouffed puffed piaffed paved paveed peeved pooftah
poufed fed feued feud feod cuffed goofed leafed baffed luffed muffed naffed piaffed beefed reefed pouffed refeed reified roofed daffed deified tiffed waifed whoofed woofed chaffed cheffed sheafed offed biffed knifed feed boffed feoffed fifed hoofed huffed coifed buffed coiffed gaffed quaffed loafed miffed puffed refed reffed riffed ruffed defied doffed waffed whiffed wifed chafed chefed chuffed yaffed
pouf pouff pouffe pouffy poof poofy puff puffy