Any tools out there to help with personalization?

I'm working on a cold outreach cadence where I use Becc Holland's Flip The Script methods, and the first step is to find 3 personalized premises to write custom emails off of. The issue is when I get to boomers or IT prospects, they're not super active on Linkedin. Even the ones who are active, it takes me a lot of time to do this.

Are there any platforms out there that automate prospecting or streamline the process?