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.
floors flours floras fluors flirs filers flairs flares valors fluoresce fooleries fleers fliers fowlers fillers valours fuelers fullers velours fallers fellers feelers flurries failures filarees valorous valorise fuellers fulleries velars valuers vealers veilers velures valorize voleries
floors valours tailors dolors pylorus pallors couloirs colours colors clours jailors velours valors lores fluors flours floras bailors lours loris galores pelorus sailors dolours wallaroos
floor flora florae flour floury fluor foolery