Bonkers rhymes with:
conquers, yonkers, anchor's, anchors, banker's, bankers, bankers', bunkers, cankers, clunkers, conquers, drinker's, drinkers, freethinkers, munkres, plunkers, rankers, spelunkers, stinkers, tankers, thinkers, tinker's, yonkers, younkers, younkers'
Bonkers sounds like:
bancshares, bancshares', bangers, banker's, bankers, bankers', bankshares, benchers, bobbinger's, bongers, bouncers, buenos-aires, bunkers