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.
diploes dipoles dapples deploys tipless tipples tapalos topless topples tupelos tapeless duopolies tepals
diploes pales applies peplos replows reapplies sapless nipples papules maypoles spiles soupless supplies cupules zipless lipless hopples deploys capless dipoles hapless tipless fipples topless hipless tupelos apples wheeples pules polos ploys maples plows plews popples ripples replies soapless nopales peoples napless supples spales zeppoles gapless peles dapples huipiles poles couples tapalos piles tipples pleas topples hoopless uppiles plies shipless