FireHol [1] and lists_vpn [2] are useful for nginx geo files. Be sure to use iprange [3] to aggregate cidr ranges, IP's or lists get big fast The IP ranges can be used in conjunction with rate limiting and/or firewall ipsets and/or blackhole routing tables depending on what type of abuse your site is receiving.

LLM's can help you implement iprange into IP list building scripts to keep the lists smaller and more efficient.

[1] - https://github.com/firehol/blocklist-ipsets/

[2] - https://github.com/X4BNet/lists_vpn

[3] - https://github.com/firehol/iprange