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.
fuehrer fuhrer fearer furrier freer furor frier firer furriery frere farer fairer furore farrier firrier farriery friar frore friary varier fierier
fuehrer bearer shearer cheerer fearer fuhrer hearer hirer jeerer queerer merer nearer rearer searer serer dearer tearer wearer sharer sheerer