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.
brumal bromal broomball bramble brambly
brumal serumal ramal remail airmail bromal formal graymail gremial normal premeal primal proemial ceramal dermal drumly
brumby brume barm barmie barmy berm berme brim brome bromo