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.
slices sluices siliceous cilices cylices solaces silicious sleazes solecise solecize soleuses salacious salsas xyloses
helices chalices culices pollices cilices cylices malices plaices sluices calices slices polices tallises malaises floozies places palaces glossies valises solaces falces coalesces falsies bullaces laces fleeces policies jealousies challises floosies halluces glassies relaces flossies lazies lycees calyces luces liaises realises palsies realizes lezzies calces lassies glaces dualizes jalousies fallacies cullises shoelaces
slice sluice sluicy sulci sylis