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.
muletas mullets moults mallets maltase millets malts melts mullites milts mulattos molts maleates mulattoes moulds mildews malates miladis maillots melodies maladies miladies melodias multiuse melds milds molds maltose meloids
muletas galletas lets deleads deltas relets sallets piolets pleats palets pellets bullets mullets leads boletus fillets chalets filets flotas valutas howlets cleats cullets bluets culets gallets gullets mallets millets wallets blets collets maltase bleats callets coleads billets valets violets ballets balatas lotas litas leets fleets gleets quillets boletes owlets pallets pelotas pleads pullets rillets sleets deletes toilets willets sheltas
muleta mauled moult mulatto muled mulled mullet amulet