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.
cruller crueller kruller crueler coruler grueller caroller curler caroler grueler crawler griller curlier crawlier grillery corollary quarreller growler growlier quarreler
cruller kruller troller drollery driller reroller raillery crueller crueler coruler caroller hurler furler friller frillier burler griller rulier ruler roller rallier curler grillery grueller brailler grueler quarreller derailleur droller triller shriller