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.
spherier cipherer severer savorier sufferer savourier
verier fierier spherier chafferer deferrer varier farriery firrier frier furrier furriery savourier hoverer coverer farrier referrer reverer savorier severer quaverer cipherer sufferer quiverer waverer offerer shiverer