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.
centai cent cento centu scent senti cenote seniti zenaida sent scend sente senate sennet sennit sonata sienite
centai nota shantih chianti tenuti sonata seniti pinta pinata menta mantua manta quinta quanta coontie junta vawntie anta vauntie bonita auntie anti antae pantie pineta inti senti tentie untie shanti yenta