With the maritime sector contributing significantly to global emissions, the industry is increasingly turning towards greener fuel alternatives like LNG and hydrogen to address decarbonisation challenges. Hybrid propulsion systems, including dual fuel technologies and diesel-electric hybrids, are providing cost-effective solutions for shipping companies to comply with environmental regulations and reduce their carbon footprint. While hydrogen shows promise as a clean energy resource, challenges such as low energy density and infrastructure requirements need to be addressed for widespread adoption. Countries like Norway are already investing in hydrogen infrastructure, demonstrating early support for sustainable maritime fuels. However, the lack of international regulations and infrastructure at ports pose obstacles to the widespread use of hydrogen-powered vessels. Efforts towards developing patented hybrid propulsion solutions, including wind-assisted technologies, are showcasing innovative approaches to reduce emissions in the maritime industry. To achieve global adoption of sustainable maritime fuels, enhanced coordination among nations is essential to establish the necessary infrastructure to support the transition. While hybrid propulsion systems offer an immediate step towards decarbonisation, long-term solutions focusing on sustainable fuel alternatives like green hydrogen are crucial for a greener future in shipping.