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.
reaching retching roaching reechoing ruching reshoeing rushing
aching etching mouching leching pitching peching leeching fetching touching niching catching hitching douching ruching itching eching teaching batching baching patching witching hotching hatching couching letching leaching vouching mooching bitching caching coaching botching reaching ditching watching pouching miching pooching retching matching latching ouching hutching notching peaching poaching beaching roaching tushing gushing meshing joshing soochong pushing gashing dashing leashing whooshing bushing sashing quashing whishing pishing wishing lushing wooshing washing fishing chang deashing gnashing lashing coshing souchong echoing reechoing bashing hashing chink mushing rushing noshing mashing dishing ashing pashing fashing cashing hushing moshing shushing