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.
chess chews cheesy wyches chasse cheese chis chez shes chase chays chose shoes shews chais chaws sheas chias shies chows chaos chiaus choice chouse chowse chaise choose choosy choosey choughs sheughs
chess hes ess shoes hies shews whews sheas hoes hiss loess guess jesse jess gesso hues messy haes hews ghees fesse fess less mess gneiss cess wheys hehs ness chews shes shies wyches