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.
dishy dish dashy dash dashi deash ditch duchy tushy tosh tush
dishy fishy shy cuish wish heishi washy rushy geisha pushy pish mushy meshy mashy gushy cushy bushy vichy beauish ashy shay knish poisha rishi sashay dish fish dashy tushy whish wisha