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.
local locale locally laical locule loculi laically legal leakily legally luckily
vocal focal local locale faecal faucal fecal jacal jackal cecal recall cicale scall skoal zocalo ducal goal caecal coaly call pical coal recoal caul cicala calo scale coala scaly laical socle koala decal tical
loca lock loco bloc block blocky floc flock flocky cloaca cloacae cloak clock