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.
chiro chiru chirr chair choir chirre churro cheero charro char cheerio churr shirr chary chare shire charr shier cheer chore charry cheery cherry chorea shri
chiro biro shire choir vireo hair heir hero hire giro guiro doughier tiro whir whirr chair chirr chiru shier shirr