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.
cunt count county cant cuneate gaunt canto quint conto canty conte quant gunite quinta cannot quaint quinte quanta quinnat connate connote coontie quinate kent cnida condo coned kente qanat candy caned canid
aunt cunt chaunt dunt daunt runt punt mount lunt gaunt count bunt jaunt hunt haunt vaunt fount taunt shunt