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.
sals sales sails sauls seals salsa sols sels sallows sallies sells slays sylis solus soles zeals silos souls slows solos sailless seels sulus slews sloes sills soils slaws slues selles soleus selahs zealous sillies scillas sullies cels soilless soulless ceils cells slice sulci zills
aals heals shoals wheals teals dials dals seals rials peals pals meals goals gals coals jouals vials als veals phials foals bals baals reals sals zeals deals duals weals sheals sials
sal sale sall sallow sallowy sally