Based on this product's specifications, here are some alternatives and similar models
Firewall appliance Cisco Secure Firewall 1210CP Compact PoE Threat Defense (CSF1210CP-TD-K9)
Summary description:
Cisco Secure Firewall 1210CP is a compact firewall appliance with Threat Defense software, designed for small offices and branch locations. The CSF1210CP-TD-K9 model includes PoE capability and provides network security functions such as intrusion prevention, traffic inspection and policy enforcement. It is suitable for protecting LANs, securing remote sites and simplifying centralized management.