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.
retax retags retacks retakes radix redox redux reattacks
retax tax taxa taxi ataxy bateaux batteaux eutaxy coteaux couteaux gateaux detox chateaux
retack retag retake reattack retook cretic uretic