How can I view the currently selected guards of my Tor browser (not just the one in action, but all three, my client keeps in a list)?
It depends on your operating system, but on Linux go to
tor-browser/Browser/TorBrowser/Data/Tor and open the file named
state. Here you'll see the sampled guards. Also note the
confirmed_idx field, which states the position of the guard in the confirmed list. Right now Tor uses one guard for circuits, and three directory guards (the other guards will not have
Edit: I don't think this answer is completely accurate. This is where Tor stores its guards, but I'm not sure I'm interpreting the state file correctly.