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.
morn moron mourn moreen morion moraine morrion mirin marina marine maroon marron murein murine murrain murrine
born horn corn lorn morn porn sorn torn worn shorn
mor mora morae moray more morro morrow