Over the last decade, data-intensive research has revolutionised scientific discovery methods. Social sciences and humanities researchers face challenges in finding, accessing, and reusing data in a compatible manner. The new infrastructure aims to address these challenges by building upon the successes of iCANDID (2018-2022), offering easy access to extensive textual data from news and political sources. iCANDID 3.0 will facilitate interdisciplinary research by integrating data from galleries, libraries, archives, museums (GLAM), and online sources, using advanced AI for text and image analysis to ensure data is findable, accessible, interoperable, and reusable (FAIR). It will enhance data visualisation and discovery for research across disciplines while improving the visibility and use of GLAM and social sciences data by linking to major European infrastructures.