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.
reimmerse rimmers rimers reimburse rammers reamers remorse rummers remoras rhymers roamers roomers remarries rumors rumours reembrace
immerse reimmerse shimmers wommeras dammers simmers rimmers emmers hammers hemmers hummers jammers commerce gammers bummers gummers limmers mammers mimers mummers rammers cummers rummers summers dimmers shammers yammers
rimmer brimmer crimmer grimmer krimmer primmer trimmer