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.
fanatic vanadic venatic fundic phenetic phonetic
enatic fanatic venatic lunatic cantic dunitic quantic deontic kinetic hypnotic kenotic monadic genetic mannitic gonadic vanadic lentic cuneatic quintic maenadic phonetic mantic phenetic ontic biontic zoonotic antick downtick antic tonetic