>I use one (cloudflare blocker), it's called "Tor".
That's not exactly a CF blocker though. Sure, its protecting you from being trivially identified by hiding your IP address from CF, but they can still aggregate the data you are feeding it by using a service they control. And can probably do worse things.
I prefer to be informed that a site is CF so you can avoid using it at all. A handy add-on for Tor Browser is Block Cloudflare MITM Attack. The default settings block CF immediately, though which is a behavior-based fingerprint problem, I use the setting that turns the addon icon red. That doesn't protect from Amazon Cloudfront or Akamai though. The tool I use the most is the Antitrust Firewall.