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.
shrieky shriek shrike shark shirk chark chirk shrug charka choric charqui choreic
shrieky reeky rekey bricky freaky creaky crikey pricky drecky tricky shriek
shri share sharia shariah shier shire shore shrew ashier