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.
fluoride fluorid fluorite florid flurried floret floured floruit floored filariid flared fleered foulard velured fullered flirt flirty
chloride fluoride florid fluorid fluorite gloried pilloried telluride chlorid chlorite
fluor fleury floor flora florae flour floury flurry