I recently came across a Montessori wooden bookshelf in beige that might fit perfectly with your vision. It's designed to be both aesthetically pleasing with a minimalist design and functional for kids, encouraging them to pick out their books and toys independently. Here’s where I found it:
https://goodevas.com/en-gb/products/montessori-wooden-bookshelf-beige It’s a great way to promote organization and independence in a stylish, child-friendly way.