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.
reran rerun reearn
reran ran ern durian terne serrano drain rerun saurian fern kern borane guarana ferny furan hern shoran furane earn crane erne grana quern lierne marrano hyperon pirana purana reearn terrane grain roan parian kerne guarani learn brawn rani rain wyvern bran heron groan gran prawn loran murrain pyran curran brain buran saran serin sierran drawn tern terrain train yearn
rear ruer frere rearer drear dreary