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.
fons foins fohns foehns fans funs fins fens fauns fawns fines fanos finos phons fanes finis phones faenas faunas phonos finesse fewness phonies feyness funnies fannies phoneys vans fancy fence vanes veins venus vinas vines vinos
boons cons toons tauons zoons scions cions pons peons ons neons eons fons phons hons ions aeons goons paeons tons dons sons hysons poons pions noons coons muons moons mons loons lions kaons wons