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.
kraal graal craal coral crawl goral grail krill corral crawly curial gooral grayly carl curl
craal graal kraal crawl rale rail areal aerial boral rial loreal brawl irreal viral real narial aural brail oorali parral cereal seral sural zoarial drail dural trawl ureal woorali choral choreal morale feral jural moral trial urial drawl trail surreal derail serail serial oral rural mural neural frail chorale chiral goral loral corral ferial grail gooral curial burial boreal coral gyral horal gharial chorial