I'd ask about some of the older medications that are less common now but still sometimes used: MAOIs, FGAs, etc. Older psychiatrists and pharmacists just naturally have a better grasp of them than newer psychiatrists. I'd also ask about meds for specific patient populations you're interested in, ie pregnant/breastfeeding, seizure d/o, transplant patients, genetic d/o, and the such.
ETA: Also any research into newer meds with unique MOAs. I've been exploring the newer TAAR1 agonists and would love to talk to a pharmacist with more knowledge in that area.