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.
markkas markas marks maracas margays mirks murks merks marcs marques marquis myricas marquees marquess marquise mercs morgues
markkas burkas markas parkas charkas