Vital Intelligence sources

I’m on Heart’s Desire, facing off against the manager. I’m stuck on Fortify Your Mind:

The Airag and Diary of the Dead aren’t a problem, but I looked on the wiki and sources for vital intelligence are rare. I’m nowhere near the stage of being able to get them from the railway either, but I do have access to parabola / the lab. Any ideas?

“Sell her an Epaulette Mate” is an option if you have access to the chessboard in Parabola and to the bone market.

Heists on the Envoy’s Townhouse provide 1-2 VI

Thank you! That will work great!