Best way to get real experience over the summer?

I'm starting my master's program in data science in a highly regarded Ivy League University this coming fall. While I'm very excited, I was also hoping to get the opportunity to gain real world experience doing data science and get a head start on my incoming debt with an internship.

Unfortunately true data science internships seem few and far between. I apply to every new data science adjacent internship posting I see per day, but have only gotten an interview for a MLE related role in which they went with another candidate.

My question is: Besides internships, is there any way to gain real world experience to put on a resume?

As a disclaimer, I have already done personal projects, am on kaggle, and am aware of datakind. Any advice is much appreciated