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.
floret floored floruit floured flirt fluoride fluorite flared flirty florid fleered fluorid flurried fullered foulard velured filariid valerate
floret floored claret collaret colored cellaret soleret solleret tailored
flora florae flare flir floor flour floury fluor flurry