Based on this product's specifications, here are some alternatives and similar models
Battery nemo for Xiaomi Redmi Note 8 Pro — model BM4J, 4500 mAh
Summary description:
Replacement battery by nemo compatible with Xiaomi Redmi Note 8 Pro, model BM4J, rated capacity 4500 mAh. Designed as a direct replacement to restore device runtime and provide standard charging/discharging performance. Suitable for repairing or refurbishing phones where the original BM4J battery is worn, ensuring power backup for everyday use and moderate mobile tasks.