Northam rhymes with:
alsthom, anthem, botham, cheetham, cotham, gotham, grantham, greetham, higgenbotham, higginbotham, higinbotham, latham, leatham, southam, statham, stethem, tatham, trantham, trentham, waltham, whitham, witham, wortham
Northam sounds like:
nardini, nardone, narodny, narration, nordan, nordeen, norden, nordin, nordine, nordman, nordmann, norodom, norton