The Links Grid can have a title and sub-title text. Then a grid of links can be built up, however many that you need. You can only select the colours from the pre-determined brand colours of NHS. Selecting any other random colour will not work. See the currently selected colour for Grid Item Text Colour. It doesn’t work.
Content inside a paragraph block. The idea of the accordion block is that there is a title, which is always visible, and the expanding content that can be any content. You can use combinations of any Gutenberg blocks. See below…