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.
silos sills slows sloes soils solos sails sillies sallows sols scillas sels sals soilless sailless salsa sales sells souls soles solus ceils sulus sauls seals sylis slews zills seels slaws slays slues soleus cellos ceilis selahs xylose sleazo selles sallies sullies zealous zillahs soulless
filos silos lilos milos kilos fails biles kails felloes hulloes miles bilious foliose holloos vails loos gallous gallows hallows ills holloes olios sills fillos helloes flows bolos billows coils bills nils fills nolos pilous jails viols pilus sallows pails phyllos villous jills voiles blows quills glows villose dills hillos wallows tiles tils jealous ceilis toils lows zealous hilloas solos wills chiles pills chills chylous sheilas hullos shills duellos yellows tallows wiles niellos riels phials deils vials polos hills nails holloas callous slows hollows plows calos maills helos bails oleos fellows haloes fils halloes mellows ceils guiles piles alloys kolos foils halloas ploys gloss hellos quails riles hulloos pilose nills veils loss hulloas hollos follows oils folious heils callose helios close mils gills hilus rills belows halos folios rails mallows cloys halloos cellos ails files moils floss allows hails hallos kills jellos filose vills mails noils sloes diols lose poilus bullous hilloes fallows mills polios aloes floes boils pilis zills dials reoils wails whiles tails xylose mailes telos tills pillows rials sails roils toiles willows chiels chilis soils cholos shallows shiels sials bellows yills
silo sail scilla sill silly sloe slow soil solo