Based on this product's specifications, here are some alternatives and similar models
Lens protection film 3MK for Asus Zenfone 8 Flip (1 pc)
Summary description:
3MK lens protection film designed for Asus Zenfone 8 Flip. Pack contains one piece of camera lens protector sized to fit the Zenfone 8 Flip rear camera module. Provides scratch and dust protection for camera lenses while preserving image clarity and autofocus performance. Suitable for everyday use to protect smartphone camera optics from damage.