The design of the Future Internet for the Internet of Things (IoT) is a rapidly growing research field that aims to overcome the limitations of current Internet architectures in handling massive device connectivity, scalability, security, and real-time data processing. Research papers in this area investigate novel architectures, protocols, and frameworks to support ultra-reliable, low-latency communication (URLLC), seamless mobility, and context-aware services. Key studies focus on integrating IoT with 5G/6G, software-defined networking (SDN), network function virtualization (NFV), and edge/fog computing to build flexible, adaptive, and programmable infrastructures. Recent works also emphasize data-centric and content-aware networking, blockchain-enabled trust models, AI-driven network management, and zero trust architectures for resilient IoT ecosystems. By addressing challenges of heterogeneity, interoperability, energy efficiency, and quality of service, IoT Future Internet design research provides the foundation for next-generation smart cities, autonomous systems, healthcare, and industrial IoT applications.