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.
calorie calory galore coalier clour color colure colour gloria coaler caller galere collier couloir collyria colliery galleria claro clary glare clear glory coiler collar cooler culler gaoler glaire gluier gallery
calorie lore florae galore gloria peloria pylori