Based on this product's specifications, here are some alternatives and similar models
Power bank Xtorm Go2 20,000 mAh 15W (1x USB-C, 1x USB-A) – Charcoal
Summary description:
Xtorm Go2 power bank with 20,000 mAh LiPo battery delivers portable charging for smartphones, tablets and other USB devices. Provides up to 15W output via one USB-C and one USB-A port, supporting simultaneous charging of two devices. Universal compatibility and charcoal finish make it suitable for travel, daily use and emergency backup.