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.
gulfier golfer qualifier cliffier culver glover clavier claver clever clover cleaver clovery
gulfier qualifier shellfire telfer sliver rolfer pilfer nullifier mollifier lowlifer golfer leafier cliffier hellfire vilifier fluffier liver lifer deliver wolfer shelvier