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.
gorms grams corms gouramis grooms kormas grimes grumes gramas gouramies corymbs quorums cormous grammas grammes gremmies crams corymbous corymbose cremes kermis creams karmas caroms crumbs kermes crimes grumose kermess grumous carroms grimace curiums crambes kirmess crummies kermesse
forms gorms worms corms norms dorms harms bromos vermis brims forums rums marrams arums herms proms carroms crams vrooms firms barms prams prims varooms ferrums drams chromos chromas charms warms trams teraohms durums dirams brooms jorums bermes kermis dermis farms germs harems grams drums perms berms larums roams rims ihrams rems rooms aurums quorums fermis bromes jorams zirams dayrooms serums forams vermes promos derms rams proems grooms roms kormas kermes barrooms arms rearms trims karmas caroms aromas dermas tearooms terms formes neuromas chirms chromes showrooms
gorm corm gourami gram grama gramma gramme gremmie gremmy grim grime grimy grum grume korma