Based on this product's specifications, here are some alternatives and similar models
Lens protection 3MK for Oppo Reno 6 Pro 5G (CPH2247) — 1 pc
Summary description:
3MK lens protection designed for Oppo Reno 6 Pro 5G (CPH2247). Single-piece pack contains one protective cover for the camera lens to guard against scratches, dust and minor impacts. Compatible with the specified model, it preserves image clarity while maintaining camera functionality and fit for everyday use.