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.
clads clades coleads glads colds clods glades cleats caulds clouds claddaghs colloids collates collides colludes colts cults gleds clots golds glides cloots gloats guilds gledes culets cultus gleeds clouts callets colitis cullets collets keloids calottes culottes galateas gallates galletas killdees quaaludes
ballads glads clads salads lads fields lades payloads gelds faulds clades moulds bields folds elds tildes pleiades roulades wields gilds reloads wealds holds sleds dildos sialids sheltas childes wolds wilds welds tuladis silds olds deleads belauds geladas flats blades blats bolds iliads deltas pleiads allods lids halids balds velds leads felids gleds plats naleds guilds plaids molds clods milds oeillades plods ballades lauds miladis solids slats glades coleads colds pleads loads caulds golds melds woalds chields lats chiliads shields builds yields
clad claddagh clade cleat clod cloddy cold glad glade glady yclad eclat