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.
appalls appals appeals appels apples appaloosa appellees apollos applies appulse applause
appalls palls spalls pals appals tapalos opals spells spails nopales spales copals sepals appeals repeals peals keypals polls pawls palsy pales pails nopals pipals pills repolls spills pulls tepals
appal appall appeal appel appellee apple apply