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.
zouks souks zooks soukous suks zeks socks soaks sokes sucks sooks scouse zygose sukkahs zaikais skas skis suqs zags zigs
jouks souks zouks mucous lucks gooks dioicous sokes pocks kooks mocks cukes zooks nukes sucks jukus fucous neuks gowks pucks cokes nocuous focus rugous mokes raucous yucks yokes ukes yeuks shooks ducks chucks chokes woks soukous books tokes hucks bucks bocks soaks rooks bogus jocks auks locus jokes cocks docks knocks pokes chocks hookas tucks yocks howks okes pukes nocks cooks hokes oaks rocks mucks socks jauks sooks shocks jukes looks hooks suks fucks vacuous locks nooks aqueous hocks yoks scouse hocus rucks gucks okas dukes wauks chooks shucks yuks