Project ideas for Golang, Kubernetes, Kafka and gRPC

These are some of the technologies I saw a Senior Fullstack Developer role requiring.

Golang: Sets the standard for efficient backend development.

GCP: Guides the team in scalable cloud deployments.

Kubernetes: Crucial for leading complex system management.

Docker: Ensures consistent application deployment quality.

Kafka: Leads in building real-time, event-driven systems.

REST and gRPC: Offers diverse and efficient API solutions.

Event-driven Architecture: Directs the development of scalable, responsive applications.

Frontend Knowledge: Bridges backend and frontend efforts for team synergy.

Event driven Microservices

I don't sit with Golang, Kubernetes, Docker, Kafka, gRPC in my own hobby projects. However, it would be fun to get to know this tech stack in an upcoming project. Do you guys have any suggestions of projects that I could to that utilize this tech stack?