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.
chirus chiros chirrs choirs chairs chorus chirres chars chares charrs churrs charas cheers shirrs chores shires shiers charros churros choreas cheeros cheerios cherries shris shrews shores shoers shears shares sheers tiaras chorizo sharias sherris shariahs sherries
virus nairus chirus mairs kiers parous kirs hairs ferrous coirs cerous rues gurus lairs furious choirs iris varus cires fires cruse piers grues gyrus cirrus hires shirrs trues kurus sirs chirrs chairs vires whirs weirs deairs urus shiers fiars tires torous moires hydrous praus xerus fairs pairs mires serous birrs liers cereus ruse ires cirrous keirs aurous biers chiros various peruse guiros aureus sires pareus carious biros quires nairas airs firs druse liars curious giros ceruse serious heirs noirs birse sorus porous viers wires tiros vairs tiers liras truss zaires wairs whirrs mbiras crus mirs chorus shires torus yirrs
chiro chirr chirre chiru churr ochry chorea ochrea chore achier choir shire cherry chair chary char churro charry shirr charro ochre charr ochreae chare chichier