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.
morsel morosely marcel marseille marsala
hirsel morsel dorsel carousel warsle carcel tiercel presell tercel marcel hoarsely crousely coarsely carrousel erosely hirsle bursal resell reseal parcel dorsal versal morosely tarsal tersely tressel wurzel
mors morse amoroso marse mirs moires moors moras morass morays mars morceau mores morose morris morros morrows morassy amorous