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.
giggler gigglier jigglier joggler juggler jugglery jugular
boggler goggler higgler niggler joggler toggler wriggler wiggler juggler giggler haggler jugglery kegler gluer uglier gogglier bugler wagglier regaler ogler jigglier wrigglier nigglier gigglier wigglier
giggle giggly gigolo jiggle jiggly