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.
monadal mandala mental mentally mantel mantle mandola
monadal gonadal natal nidal nodal anodal vandal gonadial mandala neonatal poundal sandal sendal sundial synodal
monad menad monde mondo monody mound