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.
sold soled soldi solid soldo solidi souled soiled soloed sled slid sild slide sloid sloyd salad slued siloed sailed solute sealed seeled solate sullied sallied slut silt salt slit slot slat salty sault silty slate slaty sleet
bold fold hold cold gold mold old sold told wold