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.
stacks steaks sticks stocks stakes stags stickies stokes stooks steeks stoics staigs staggies suitcase seadogs zodiacs seedcase
tacks retacks attacks stacks reattacks ducks takes teaks ticks tucks bedecks padauks redocks haddocks mattocks dicks ruddocks betakes stakes sticks zodiacs shaddocks shitakes decks dawks retakes takas bittocks futtocks geoducks medakas outtakes paddocks tacos buttocks daks piddocks patacas medicks docks steaks stocks deticks shiitakes shticks
stack stag staggie staggy staig stake steak stick sticky stock stocky stuck