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.
whosises whoosises wiseasses
cassises sises whosises missises tussises whoosises noesises sices possesses cissies recesses assesses risuses sisses disseises assizes susses laicises byssuses passuses misuses sizes missuses cesses reassesses lususes resizes sissies disseisees seises disuses sasses sassies wiseasses