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