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.
tetanic titanic diatonic toting dieting dotting dueting tatting tauting tedding toiting tooting totting touting tutting
botanic satanic tetanic titanic tannic tonic tunic atonic botanica photonic phytonic ketonic neotenic hypotonic stannic diatonic