Question about Recommended stress test tools for bind.

[Techs-yama]

Hi, bind forks !

Now, I was bind deployed on a new on-premises server.
I want to make sure that settings are appropriate and check recursion
performance on bind.
Which stress tool would be useful and recommended in this case?
(I already know dnsperf. )
and How do you have any recommended statistics items to check by rndc stats.

Best regards.