Based on this product's specifications, here are some alternatives and similar models
Portable Battery RealPower PB-20000PD Pro 20000 mAh
Summary description:
The RealPower PB-20000PD Pro is a high-capacity portable battery with 20000 mAh, featuring Quick Charge 3.0 technology for fast charging. It has one USB Type-C port and delivers a total output power of 100 W with an output current of 51 A. Its sleek aluminium design makes it both durable and stylish, perfect for charging devices on the go.