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.
reechoes retches reaches rechews rechose reshoes wretches rechoose ruches reshes riches ratches roaches reshows rouches rotches rachis rashes rushes rushees ratios rishis roshis
echoes reechoes lychees fitches vetches hutches catches liches cutches chews chaos gouaches fetches shoes pitches caches echos nautches hooches hootches eches quaiches latches vouchees cooches hatches chose mooches poaches ruches witches rotches watches toeshoes reshoes teaches duchies rechose douches seiches nitchies muches bouchees riches leches reaches ouches matches peaches pouches maches naches chess letches wyches beaches quitches fiches cachous fitchews vouches rechews beeches loaches vichies machos batches hoochies itches nachos quiches gauchos boches laches notches butches coaches etches miches baches lichees couches lyches aches aitches leeches ratches mouches leaches hitches patches niches hotches ketches pooches botches roaches bitches wretches mutches ditches duchess chows taches techies retches touches wiches rouches chowchows
reecho reechy reach rechew retch breech creche