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.
shlep shlepp shallop chalupa
shlep leap beleap bleep help holp julep clepe kelep pileup salep sleep whelp shlepp
shale shaley shall shallow shaly sheal sheila shell shelly sheol shiel shill shily shul shyly