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.
reshod reshoed reshot reshoot reechoed rushed reached retched wretched ruched recheat roached
shod reshod bowshot shad bashed ashed shot shoed coshed shed pashed gashed mashed leashed moshed gnashed echoed reshot sashed deashed tushed whished wished wooshed quashed noshed gushed bushed pushed pished reechoed fashed fished hashed mushed joshed hushed cashed cowshed lashed lushed meshed reshoed rushed dashed dished washed whooshed witchhood shushed
resh reshoe reshow rash rechew rishi roshi rush rushee rushy fresh preshow