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.
shooter shouter shutter sheeter shatter shoetree shoddier shittier shader cheater chowder chitter chatter shedder shudder shadier chattery chattier shuddery chador cheder chider cheddar chudder
footer cooter tooter shooter hooter rooter mooter looter couter rioter bootery oater sootier outer rotter pouter boater zootier cotter dotier footier dotter hootier totter tattooer noter coater jotter quoter knotter potter touter otter voter rootier lotter toter loiter goiter router powter souter hotter doter shouter
shoot shot shoat shooed shote shott shout