The jot touch is my stylus of choice at the moment for drawing - especially in Procreate. It connects with blue tooth, which adds pressure sensitivity in various drawing apps. It charges via a usb dongle - and keeps a charge for months, literally. My only negative comment is the fact that the lid tends to unscrew itself when the pen is in my bag, and I lose the delicate tip.
Almost all the drawings on this page are done in Procreate, which is my favourite (by far) drawing app.
I generally start a drawing with a light scribble, then create a new layer and draw over the top, using the first drawing as a scaffold. I will then add tone using another layer beneath the drawing layer, with the opacity very low, and a fouth layer above this for highlights.