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.
coiffe coffee coff coif cafe caff coof cove cuff cuif cavie covey gaffe quiff kif
coiffe iff wife waffie tiff ruffe rife piaffe miffy miff life quiff gaffe coffee jiff jiffy iffy fife feoffee bouffe biffy biff knife pouffe riff diff toffee whiff wifey