I know it's NYPost but give the article a chance. It captures a sentiment about post-COVID, app-centric dating that I haven't seen expressed before.
Off the top of my head... Casual sports like kickball, slow-pitch, frisbee (ultimate and golf), etc. Running (and if you want to drink while you run check out hash house harriers). Tennis and pickle ball. Bocce ball.
Dancing. Both line dancing and social ballroom dancing.