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.
grazier grazer crazier greasier grassier greaser gorsier crozier creasier grocer crozer cuirassier cruiser grouser corsair creaser crasser grocery grosser crosier kreuzer cruzeiro crosshair curiouser curser coarser courser crosser
brazier grazier crazier greasier racier raiser razer brasier brazer breezier frizzier frowzier furzier creasier crozier grazer frouzier praiser