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.
reguli regalia regal regale reglow reglue regally rugal recall recoal recoil rugola wriggly
reguli gul glia gull aculei jugula coagula ligula ligule loculi mogul oculi peculia seagull sigloi
reg reggae rogue argue grego dreg dreggy