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.
gossans gossoons gassiness cousins caissons cassenas cassenes cassinas cassines cosiness gazanias quassins cozens caseins cosines
messans gossans sans paisans sains sanes asanas fusains hessians caissons quassins lessons paesanos paesans paisanas paisanos lessens tisanes