Need guidance

I'm a final year Btech student, I got selected in virtusa, LTIMindtree and dxc at the package of 5.5, 4 and 4.2 My friends are doing internships at good companies and I'm just looking for better opportunities. I have a knowledge of core java, and basic dsa. What should I do to go to product based companies? Should I prepare dsa, or do j2ee or switch to react and nodejs or something else?