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.
karaokes crakes caracks cargoes carracks kirks carks groks cargos quarks crooks cracks carcass carcase garigues curacoas cariocas curacaos carex crags crocs grogs crocus gregos
karaokes rakees rakes rookies berakes brakes brookies eurokies farragoes viragoes crakes drakes taroks trokes