Based on this product's specifications, here are some alternatives and similar models
Notebook A5 squared LEITZ Office — wirebound, cardboard hardcover, 90 sheets, 80 g/m², grey
Summary description:
A5 squared LEITZ Office notebook with wire binding and a sturdy cardboard hardcover. Contains 90 sheets of 80 g/m² squared paper, suitable for note-taking, sketching grids, technical drafts, schoolwork and office records. Monochrome light grey cover provides a neutral design and the wire binding allows the notebook to lie flat for comfortable writing.