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.
savorier savourier savorer savourer seafarer spherier severer
savorier verier spherier savourier savourer savorer favourer favorer varier farrier furriery furrier frier firrier fierier farriery devourer
savor savory saver savior saviour savour savoury