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.
howlets holts hilts halts holds helots halides halites halitus holidays holydays halids halutz haloids
howlets owlets lets mallets ballets collets pallets boletus gullets gallets cullets blets billets callets bluets leets piolets pullets rillets sleets toilets welts wilts bleats boletes bullets mullets sallets deletes pleats relets fillets gleets pellets palets muletas willets wallets filets millets galletas quillets culets cleats violets valets fleets chalets