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.
slows sallows slaws solos silos slews sloes sals sels sols sauls seels souls sells solus sulus sales soles soils seals sylis sills slues sails salsa slays xylose selles cellos soleus sleazo selahs sallies scillas sillies sullies zealous sailless soilless soulless
allows slows plows tallows glows billows flows bellows fallows wallows fellows shallows lows hallows pillows yellows willows mellows hollows blows mallows gallows follows sallows belows fowls holloes alloys jealous bullous helios callous cloys pilous floes plews haloes filos oleos hollos felloes aloes niellos gloss callose polios laws blaws calos loos telos duellos xylose phyllos slews silos cellos chylous kilos holloas lowse bolos blowsy kolos floss lose helos folios owls halloas hullos ploys olios flaws lilos halloes clews pilaws cowls jowls hilloas close hulloos fillos villose hellos claws hillos holloos helloes bowls hulloes pilose hallos howls hulloas villous bylaws nolos hilloes halloos halos jellos loss flews polos filose slaws sloes solos zealous gallous milos cholos yowls