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.
solace soles slice soleus sluice sleaze sols soulless soilless sulci slaws sales slews soils solos salsa slays solus sloes slues souls sleazy cilice selahs sluicy selles sallies scillas sillies sullies sailless
lace palace solace relace shoelace place bullace glace fallacy chalice veloce lacy blaze cilice blase lacey plaice luce lice laze glaze slice lase dolce malice police
sola sol selah slaw slay soil sole solei soli solo soul