Football's rhymes with:
footballs, footballs, basketball's, basketballs, fastballs, footballs, meatballs, softballs, spitball's, basketball's, basketballs, butterballs, eyeballs, fastballs, fireballs, footballs, handballs, meatballs, mothballs, oddballs, snowball's, snowballs, softballs, spaceballs, spitball's, trackballs
Football's sounds like:
faithfuls, footballs, fotopoulos