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.
rechew retch ruche reach reshow rouche rotche reshoe reechy reecho wretch resh rich ratch roach rotch rushee
chew rechew fitchew gouache tache seiche nitchie rouche lychee bouchee eche touche lichee cache hoochie vouchee fitchee fiche cashew shew boche louche douche ruche rotche miche ache niche nuchae chow quiche gauche chaw chewy mache techie chowchow