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.
mandala mandola monadal mantilla mantel mantle mental mannitol mentally
mandala nidal nodal anodal vandal candela cantala gonadal gondola mandola monadal poundal sandal sendal sundial synodal
maenad manat manatee maned manta maund maundy emanate