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.
conoidal conidial gonidial quinoidal condyle gonadal condole canoodle gonadial connately cantal candle candela cantala gondola cuneately cantle kindle kindly
quinoidal conoidal hypnoidal nidal nodal anodal conidial gonidial nonideal synodal unideal
conoid condo conidia connote conto aconite