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.
cels cells ceils ceilis cellos sels seals zeals seels sells selahs selles zealous scillas sols sals soles slaws silos sylis souls slews salsa sauls sails soils slues sills sloes sales slice solus slays sulus slows solos zills
bels keels chiels tels taels dels seels els feels fuels heels gels eels mels koels kneels noels peels reels riels cels sels duels teels wheels shiels
cel cell cella cellae celli cello