I use @NostrAIDVM to give me a list of npubs that are not active and just go through them one by one and unfollow 

 Option 11 gives you the list of npubs that are not active 

 Thanks for that  

 Well option 10 worked but stopped responding after that. 

 @Don't ₿elieve the Hype 🦊 is this your bot? 

 Yes, just tested, 10 worked for me