Monitoring LinkedIn Engagement from Decision Makers: Best Practices

I’m trying to figure out the best way to watch LinkedIn engagement from decision makers at a list of accounts; for example, I want to know when the CFOs at a list of PE firms engage with or post about AI on LinkedIn. What’s the best way to do this on Clay? The “Monitor professional posts” Custom Signal seems like it might come close, but there’s no way to have it pull in a table of accounts. I think PhantomBuster has an automation to scrape all of the post links from a search query on LinkedIn; are there any best practices that might combine using some Phantombuster automation with Clay to accomplish this?