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.
rhymers rimers rammers reamers rimmers roamers roomers rummers reimmerse rumors remoras remorse rumours reimburse remarries
rhymers cummers summers lumbers foamers vomers gammers gummers dimers namers mimers rammers meres cameras hummers rimers reimmerse rummers chimeres emeers jammers shmears shammers chambers seamers homers simmers fumers wommeras comers hemmers hammers tamers limbers timbers mammers umbers roamers ombers omers aimers roomers emmers rimmers immerse combers embers reamers mummers dimmers gamers lambers gomers bombers bummers maimers dammers cymars numbers chimers cumbers womeras members timers limmers teemers ameers ambers woomeras cambers boomers smears humerus seemers chimeras shimmers yammers