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.
slits salts slots sluts silts slats saults sloids solids sleets slides slates salutes sallets solidus solates solutes salties sellouts ciliates zeolites celts silds sleds salads sloyds zealots ceilidhs
lits slits tallits flits vaults billets cullets ballets fillets blets halids gallets cultus hilts gullets bullets kilts blots pelts ballots halts toilets deltas flites gluts silts phyllites sluts volts violets blats gaults blites colts sialids shallots welts tillites plats piolets dolts belts quilts salts celts pelites rialtos reallots oolites poults illites jilts zealots malts flats howlets maillots palets colitis mullets callets millets molts wilts faults moults halites lats helots voltes alts cults gilts bolts quillets altos elites felids tilts iolites melts jolts rillets galiots gelts culets blitz allots ileitis filets halitus valets felts galliots glitz collets velites sheltas delts pullets willets owlets lilts guilts holts mallets kelts pilots lets plots milts lots litas pallets chalets sallets pellets saults slats plaits slots mullites solids zeolites relets clots lids wallets hyalites
slitty slit solid slut slot sloid slide slid slaty slatey slate slat silty silt salty saltie salt slutty solidi