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.
canny canna can cannie cain cane conn cony gunny coney canoe goanna guanay gan con coin cone coni coon gaen gain gane gaun guan kain kana kane kaon koan
fanny canny shanny nanny any whinny panne hinny ginny jenny johnny goanna bunny gunny anna wany fawny pinny rainy sonny zany tawny tunny shinney funny awny finny runny benny many annoy minny canna bonny penny ninny lawny manna punny meany sunny tannoy tinny waney wenny guanay fenny shinny