EMR for the win, potentially paired with a Lammy pen. Staendler are also quite good
Obviously EMR works best on regular android or high specific application frameworks like the Kindle or Remarkable. The PITA with e-ink android is that the low latency mode doesn't work with 3rd party apps, and even when it seems to work "better" with some apps than others all of it is based on a stack of hacks, that makes the feeling quite a crap.
Boox devices are, IMHO, poor platforms for a variety of reasons, but their notes app and Neoreader behave quite well for note taking, highlights and annotations.
About Non-EMR technology. Both N-Trig and AES are good. The ipad pencil is also quite good. USI stylus are NOT good by any metric
The issue I found with non-EMR devices is the need to recharge the pen, the difficulty to scribble rect lines at a moderate speed. They're also usually more expensive and there're few devices compatible with them, so less products on the market.