Based on this product's specifications, here are some alternatives and similar models
Portable Battery Terratec P50 Pocket 5000 mAh
Summary description:
The Terratec P50 Pocket is a compact portable battery with a capacity of 5000 mAh, utilizing Lithium Polymer (LiPo) technology. It features one USB Type-A output and one USB Type-C port, allowing for versatile charging options. Its sleek green design makes it an attractive accessory for on-the-go charging needs.