I have an older Levo Book holder. If you enjoy reading books and value your neck, I highly recommend this product. I get no kickbacks from the company for this, just a very satisfied customer (https://levostore.com/collections/levo-for-books/products/levo-book-holder-floor-stand).
I have an older holder and can no longer purchase parts for it. Therefore I went ahead and designed a holder for my Kindle Oasis so that it doesn’t keep falling on the floor and getting damaged.