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.
livest lievest liefest leafiest leaviest loveseat
vest naivest revest suavest lievest divest livest devest vast miffiest huffiest reefiest puffiest nighest feast fauvist leaviest fiesta beefiest safest highest deafest buffiest chuffest vesta iffiest daffiest savviest toughest leafiest fest feist jiviest buffest rifest goofiest chaffiest heaviest roughest avast deffest waviest chiefest liefest chuffiest
lives laves levees loves elves clivias olives slieves