are sororities still doing cob?

It varies from sorority to sorority but I think they've all at least contacted the girls they are considering. I know several have already given out bids and I think the rest are giving them out over the next couple days. If you haven't been contacted by a sorority it probably means they've already considered other girls but if there's one you're interested in, I would reach out to their rush coordinator and ask about their process!