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.
myricas maracas marcs mercs markas markkas marquis marquise marks merks mirks murks margays marques morgues
ericas myricas triacs derricks pricks ricks maracas wricks arecas barcas bricks fracas verrucas heroics hayricks gearcase carcase carcass cariocas cricks lyrics orcas darics torics tricks