Suggestions for Self-Study Materials from B1 to C1

Hello everyone!

I’m from India, and I’ve decided to settle in Germany. My A1 exam is scheduled for February, and I feel confident about A1, A2, and even B1. I’ve been using the Netzwerk Neu book series, and it seems to cover enough for B1.

However, I’m aiming for a German-taught Master’s program, so I’ll need to clear B2 and C1 as well. Can you suggest any effective self-study materials or resources for progressing from B1 to C1? I’m looking for something structured and helpful for self-learners.

Any advice or tips from your experience would be greatly appreciated! 😊

Thank you in advance!