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.
smolt smelt smalt samlet smalti smalto simulate symboled symbolled smiled smelled
molt smolt hamlet smelt smalt samlet remold remelt camlet gimlet malt boomlet moult molto mold milt melt tumult
small smell smelly smile smiley osmol osmole