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.
praiser prisere prissier parser pricer prizer proser purser presser pursier peruser pricier prosier pursuer preassure piercer pressor pressure
raiser praiser racier creasier creaser crazier crasser coarser hoarser friseur harasser eraser grazier brazier brasier riser raser cruiser greaser parser bruiser greasier prisere
praise pries upraise puris proas prissy priss prise prays pairs praus prase praos peris paris paras uprise