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.
cheesy cheese chess chews wyches choosy choosey chez chis shes shoes shews chose chias chaws chais sheas chase chows chays shies chaos chaise chasse chiaus choice choose chouse chowse choughs sheughs
cheesy easy cheese wees dees sees resay poesy fees ghees vees gees geese bees cooees queasy queues lees messy knees newsy pees rees cees zees tees wheezy jees