How to Verify/Select AntiMalware/EDR Softwares ?

Most of the EDR vendors claim that they have strong modules to detect and block any malware. However, we can't verify this until we experience a ransomware attack on our servers, at which point we may need to switch to another vendor.

What is the best method to verify this and select a better one?
What is the most trusted websites for EDR ratings?

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