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.
pilafs pilaffs pelfs pahlavis polyphase pelves pelvis ploughs paleface pluviose pluvious
pilafs leafs ulvas sylvas silvas selfs halvas pelfs loafs alefs alfas alifs blaffs volvas vulvas lavs calfs califs clefs golfs gulfs kalifs pilaffs rolfs selvas sulfas delfs wolfs