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.
mattins matins matiness matinees meatiness maidens muttons mutines mittens mutinous mutinies mateyness mutons moutons middens madness maddens medinas medians madonnas meetness mootness mueddins muteness moodiness muddiness
mattins lattins tins cutins muttons reattains rattens ratines pattens patines phytins mittens latinas lattens latinos luteins retinas routines satins steins detains matins kittens cottons poutines retines rutins attains patins retains rattons battens rattans zeatins stains biotins fattens buttons patinas jettons mutines tines tains chitins