Based on this product's specifications, here are some alternatives and similar models
Battery extra digital for XIAOMI Mi 9 SE — 3000 mAh Li-ion, replacement pack SM220502
Summary description:
Replacement battery from extra digital designed for XIAOMI Mi 9 SE. Li-ion chemistry with 3000 mAh capacity (model SM220502) provides main power for daily smartphone use, supports standard charging and device functions. Intended for repairing or restoring battery life in the specified model, it offers straightforward installation and compatibility with original phone connectors.