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.
oceans oscines osseins ozones ozonous ooziness
oceans asanas cassenas cozens hazzans hazans hessians fusains azans hausens paesans paisanos zazens osseins dozens mizzens usneas missense wizzens loosens chazzans lessens cense sains paisans license cassenes gossans sanes sans caseins scenes sensa scenas sense paisanas dizens paesanos tisanes zeins wizens mizens chazans messans chazzens