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.
reshoes reshes reshows reechoes reaches rechose retches wretches rechoose rishis roshis rashes riches rushes ruches ratches rechews roaches rotches rouches rushees
reshoes shoes toeshoes shes mashes cashoos echoes gushes fashes fishes hashes hushes cashes dashes lushes shows rushes dishes reshows moshes gnashes noshes pishes rashes reshes toshes tushies whishes wishes choushes mashies reechoes bushes cuishes leashes shies shews sheas joshes ashes cashews quashes meshes mushes lashes shoos pushes knishes pashes coshes boshes rushees sashes deashes gashes bashes tushes washes whooshes wooshes shushes
reshoe reshow resh fresh preshow