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.
usuals useless
visuals usuals casuals reassails souls missals lazulis quezales causals jezails vassals assails zeals sulus sisals salsa seals sals sales sails quezals masalas nasals resails reseals dossals sauls resales wassails