rush

Most if not all sororities probably will due to December graduates, but most will probably take very few. Houses who made quota in fall will probably take the least. Unless you have a recommendation from an active member and have great grades you make not even know about a houses rush as most keep spring rush low key.
Don't want to discourage you, just want to set expectations so you're not disappointed.
I have heard of girls sending resumes to all the houses, (include grades, campus even high school involvement, volunteer work)and I think that's a great idea! Anything you can do to introduce yourself & stand out!
Good luck! And if it doesn't work out for you fall will be here before you know it!