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.
kulaks kliks klicks cloaks gulags clacks caulks kylikes killocks killicks calks clags clucks gleeks kolkoz clicks clocks cleeks claques cloacas galagos kolkozy cowlicks gallicas glaucous
kulaks tilaks bleaks blacks bulks beyliks belgas bilks kliks lilacs cloaks placks pollacks baulks slacks calks slakes hulks talks folksy lacks lacs whelks shellacks yelks clacks flakes milks algas flacks balks folks lags lakes elks leaks leks lakhs flags polkas holks gulags silks clags slags caulks sulks ilks taluks walks chalks shellacs yolks
kulak kulaki gulag kolacky skulk