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.
quillet quilled quilt cullet gullet quailed quelled guilt culet culled callet guilty guiled gallet gulled collet killed killdee cullied gullied quality galleta kilt cult quaalude kilty gault guild gleet cleat galled coiled kiltie gleety called galloot culotte galette gallate collate collude collied gallied galeate galliot collide
billet rillet quillet millet fillet willet willed toilet gullet quilled filet galleta dilled mallet milled mullet gilled pallet pilled ballet chilled billed sallet tilled violet hilled callet rilled piolet killed pellet collet bullet nilled pullet filled cullet wallet gallet maillot shilled let
quill quillai quillaia quail quell quoll squill squilla squillae