Not sure why'd you want to skip traditional stuff. A sketchbook, some pencils and micron pens will cost you 40$ and last a year. But anyway, for drawing there's

Not sure why'd you want to skip traditional stuff. A sketchbook, some pencils and micron pens will cost you 40$ and last a year. But anyway, for drawing there's almost no difference between digital/analogue if you use a tablet with a screen. I'd suggest an Ipad for sketching because it's small and portable. I used an old and small model and it worked really well - doesn't need to be the newest ipad pro. Your example is a vector illustration and I've done very few of those. I started with a sketch in Photoshop or pencil or whatever and then traced it in by mouse or used some tracing filter in Illustrator and still cleaned it up with a mouse. So it wasn't really a drawing nor painting, not sure how vector pros approach it.