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.
spurries spurreys spurs spurious sprees sprues spores spares spires spiers spireas sapours suppress sparrows spiraeas spars superrace sapphires speirs sopors cypres sapors speers sprays spoors spruce sparse spears supers cypress sappers sippers soapers suppers saporous sprucy
parries spurries perries duperies paries peeries pries aperies apiaries fopperies japeries moperies naperies poperies roperies spurreys cooperies topiaries
spurrey spurry spur sparrow sparry