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.
catalase catalos cataloes catalyze cattails cattalos cutlas coattails cattaloes cutlass coatless caudles cuttles cadelles cuittles gateless keitloas caudillos ketols
catalase dalasi dialyse talas atlas battalias vedalias vitalise idealise matelasse metalise totalise
catalo cattail cattalo cattle octal