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.
tonish tonnish townish donnish tannish danish tench
knish monish wennish tonnish tannish danish finish vanish hunnish banish mannish hennish minish moonish nunnish punish donnish tonish townish winish gnash nosh mensh snash
ton tenia stoney atony teniae tone toney tonne tonneau tony toon toonie town townee townie towny atone atonia stone stony