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.
module modulo moduli modal model medullae mottle motile middle mutule medley motley meddle muddle modally moodily medulla modioli madly medal metol motel medial mettle muddly mutely mutual mutuel muddily medially mutually
module nodule dole meddle cuddle caudle fuddle edile huddle middle dual dale duel dull duly needle tulle tule odyle padle piddle puddle radula reddle ridley cedula sedile daddle diddle doodle waddle widdle muddle aedile medley mutule moduli butle ladle coddle idle fiddle addle heddle noddle buddle dele boodle beadle audile modulo noodle paddle peddle poodle raddle radulae riddle ruddle saddle sidle dawdle diddley toddle wheedle yodle
mod meoued mode modi mood moody