The Adonit Jot is pretty neat as it has a bit of a plastic piece on the tip for more uniform writing even at an angle, and it acts as a bit of a stabilizer as well. It runs about 20-30/35 USD depending on where you get it, and whether you get a Mini, Classic or Pro. If you'd like something a little fancier, I'd also recommend the Pencil by FiftyThree. It is a bit steeper at $50, but is a Bluetooth stylus, so it's a "smart pen" in a way, so if you're in contact with your screen, your palm resting on screen will not cause the screen to spaz out and such. These styluses (styli?) are great for writing or drawing.
For tap-poking purposes, you can also opt for a silicon tip stylus like the amPen Ultra Sensitive stylus, which runs about $10 or so. The tip wears out significantly when drawing or writing extensively, but for tap/poking purposes, it lasts quite a while as you're not constantly applying friction