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.
shoeless shoelace shoals shales shools sheals shiels shells sheols sheilas shuls shills shauls chyles cholas chiles chelas chiels shawls cholos chalehs chilies chollas challies chillies shallows sials
hueless tieless shoeless toeless feeless less wheelless lawless bless belies coalless sailless reales peles mealless jawless wayless loess awless deles tailless belles boughless toolless soilless gelees vowless wheelies keelless relies rayless melees mailless queleas goalless heelless joyless keyless viewless selles soulless dewless teles galleass toyless bowless les els
sheal sheila shell shelly sheol shiel shoal shoaly shool scholia