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.
picara picaro pakora picker pickeer pickier piker pecker pokier pucker packer pawkier peakier peckier piggery piggier pockier puckery pugaree puggier puggaree
picara car decare sowcar scaur scare care carr craw acari aquaria buckra vicar jagra lycra megara micra picaro sacra scar scary soucar daycare chakra
pica pic paca pick picky pika epic spic spica spicae spick