Is there somewhere I can go (other than Pitchbook) to get that list, or find those investors?
To be clear, this post is not looking for investor recommendations, I'm looking to learn how others do this, (how others make this list of VC's to reach out to or approach).
I don't see much value in the various services in this domain, they tend to have outdated information, do a crap job of filtering (both positive and negative) and can be a negative signal to a VC if they are the ones making first contact. Always make sure you own the relationship from day #1, lots of these services are just leadgen for the financial service providers ('corporate finance') who would love a slice of your pie, regardless of whether or not you manage to get funding. If you do engage a corporate finance company make sure they only get paid a fixed fee if they succeed, and make sure that they are non-exclusive.