After reading a bunch of reviews and watching some videos, I settled on this Kuru Toga 0.5mm pencil from Uni:
It arrived late last week, and I have been writing with it for the past few days. I have to say, it’s pretty great.
I will admit that, prior to using the pencil, I was a bit skeptical of the feature that slowly rotates the lead as you use it so as continuously provide a sharp point to write with. Having used it a bunch now, though, I really appreciate this mechanism.