Concourse rhymes with:
intercourse, agresource, clotheshorse, counterforce, deadhorse, healthsource, intercourse, racehorse, taskforce, telsource, uniforce, unisource, whitehorse, wilberforce, workforce, workhorse
Concourse sounds like:
cancer's, cancerous, cancers, cankers, ceniceros, censors, changers, commissaries, commissars, conagra's, concierge, concourses, concurs, congress, congress', congress's, congresses, conjures, connoisseurs, conqueror's, conquerors, conquers