Sure, I think everyone but the bullies would prefer your second approach. In the meantime, though, reputation is kind of all you have. I’ll add though that if

Sure, I think everyone but the bullies would prefer your second approach. In the meantime, though, reputation is kind of all you have. I’ll add though that if your gossip network is only giving you “overbearing/not” signal that’s petty weak tea. In my experience recent phd students of an advisor are typically happy to give an honest off-the-record take, that includes how driven you need to be, what to bring to meetings for them to be productive, etc etc. Each student will bring their own perspective and experiences, and may not be well connected to others’ (eg, a male student might not know that years ago his advisor’s last female student suffered harassment). But ask a few of them and you’ll have a lot more data than you started with. Also critical is to ask whoever is writing you a letter to begin with — especially if senior, they will often have useful perspective on potential advisors.