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.
saclike sacklike skylike sculk skulk cyclic
saclike jiglike taglike skylike sacklike rocklike peglike oaklike necklike lookalike leglike lakelike cokelike cocklike click quaylike hoglike hawklike fuguelike beaklike baglike aguelike nooklike peaklike piglike ruglike hooklike doglike wiglike