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.
stool stoolie sotol stole sootily steal styli setal stull stall steel still stela stile stele style stale steely stelae stelai stella citola stilly citole settle steelie zooidal
tool retool stool atoll stole sotol citole citola metol phytol ketol dooly tolu toll tole tola toil wittol
soot sooty stoa stoae stoai stow