Based on this product's specifications, here are some alternatives and similar models
Battery extra digital for Xiaomi Mi 9 Lite 4000mAh Lithium-ion
Summary description:
Replaceable lithium-ion battery by extra digital designed for Xiaomi Mi 9 Lite with 4000mAh capacity. Intended to restore device runtime and replace a worn or faulty cell. Compatible with specified model, provides nominal 4000mAh storage, suitable for everyday smartphone use and extended screen-on time. Professional installation recommended for safety.