For those not using cloudflare but who have access to web server config files and want to block AI bots, I put together a set of prebuilt configs[0] (for Apache, Nginx, Lighttpd, and Caddy) that will block most AI bots from scraping contents. The configs are built on top of public data sources[1] with various adjustments.
[0] https://github.com/anthmn/ai-bot-blocker
[1] https://darkvisitors.com/