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.
whang wank wing wooing wink wonk
hang chang whang gang shank vang hung hank sang rang pang manga liang lang quango kiang hong tango dang tanga fanga fang bang baaing mango panga wrang sanga tang anga yang
wan hwan wain wane waney wany wean when whin whine whiney whinny whiny bwana swan swanny