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.
riflery rifler riffler raffler reviler rivalry ruffler rufflier raveler reveler revelry raveller revealer reveller
riflery muffler whiffler waffler siffleur rufflier ruffler rifler riffler raffler baffler filer volery fullery foolery flier fleury fleer defiler wafflier shuffler
rifle reflew rifely riffle trifle