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.
damns damans daemons daimons diamins damianas diamines daimones daemones demons deaminase domains dimness dominos domines demeans tameins demoness demonise domaines dominies dominoes dumbness tameness deaminize tomans demonize
damns means limns omens mammons remans lemans limans gamins saimins romans siemens caymans cumins haemins somans daemons humans damans amins manse amens demons bemeans domains mons womans moans yamens muns manus hymns summons manes lumens remains gnomons romanos lemons limens gammons semens rumens simians commons cummins hymens hemins daimons caimans damianas mains demeans manas diamins bemoans tomans manos shamans mans yamuns
damn daemon daimen daimon daman damiana diamin diamine