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