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.
roofed roved refed reefed ruffed riffed reffed refeed reified roughed raved rived reaved reeved refute reived revote revved
hoofed roofed woofed whoofed goofed fed huffed quaffed feoffed coiffed loved naffed reefed buffed cheffed puffed piaffed chaffed baffed feud muffed boffed ruffed defied doffed waffed whiffed wifed chafed chefed chuffed shoved hooved sheafed reified riffed knifed miffed feod loafed coved moved gaffed beefed leafed fifed offed pouffed feed coifed reffed refed roved daffed deified tiffed waifed cuffed poufed biffed refeed luffed yaffed
roof roofie groove groovy prof proof