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.
melt melty meld molt malt milt malty moult milty molto muleta mallet mewled maloti melled millet meloid melody mullet maillot maleate melodia mulatto mild mold moldy mould muled
belt felt gelt kelt melt knelt pelt celt delt welt