One of the main things going against you right now is timing. A lot of companies try to line up their summer interns by January at the very latest. I had mine confirmed last November.

Other than that, it's good to try to tailor your projects to the kind of industry you want as best as possible. Like if you're looking for a job in aerospace or the medical industry, do something where your software is talking to hardware. It doesn't really matter what kind of hardware - do something that controls a cheap SBC or something, just to show interfacing with something realtime. That's just an example; think of the skills your target job would need, and then figure out how to demonstrate those skills on a smaller scale.

I also look at hobbies for kinds of interest. The company I work for makes major rocket engines, so I'll perk up when I see people who list their school's rocketry club, for instance.