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.
suks sucks souks suqs skis skas sukkahs soukous skews sokes soaks skies sicks sykes socks skuas sacks sakis sakes seeks zouks skees sikes sikas sooks segues scouse squaws sickos sickees sickies secs sequoias sacs sags sics zeks segs sagas sagos scows scuzz segos socas zooks
auks jauks jouks neuks souks suks zouks wauks yeuks yuks