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.
hashes hushes hatches hitches hooches hotches hutches hoochies hootches heuchs
ashes hashes shes sashes dishes quashes rashes lashes gnashes mushes reshes knishes gashes cuishes joshes mashes bushes leashes lushes whooshes tushes wooshes shushes wishes pashes choushes fishes washes dashes hushes rushes cashes deashes coshes gushes fashes pishes noshes pushes bashes whishes toshes moshes boshes meshes shews baches hoochies vouchees quitches patches lichees shies mooches kashas quiches pooches miches muches cutches chess sushis seiches catches beaches vichies naches hotches rushees leeches etches butches hatches wiches duchess witches ratches latches roshis rishis techies taches rouches ketches shoes wretches maches rotches botches reaches bitches coaches gouaches riches reshoes niches fitches quaiches pitches cooches itches pashas caches douches hooches vetches letches batches beeches hutches notches echoes nitchies leaches nautches boches matches wyches fiches couches lyches bouchees reechoes chews mutches eches loaches cashews fetches sheas aches ruches mashies laches hootches ditches ouches poaches liches vouches lychees retches mouches peaches rechews aitches fitchews toeshoes dashis leches pouches duchies touches tushies watches hitches geishas roaches teaches