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.
quantal quantally quintal quaintly quantile cantal cantala quintile quinoidal cantle gauntly kantele cuneately candle candela gonadal
quantal cantal santol cental rental neonatal mantle natal notal entail fantail fontal vandal hantle ventail genital cantala cantle quintal lanital mantel mental pintail riantly sandal dental
quant quanta qanat quaint quint quinta quinte aquanaut