More often than not I think of a subject to draw and after that try out to discover some inspiration on Pinterest. I don’t Use a devoted board for that – except for portraits (I've a board known as “Drawing References” which I usually use for inspiration) Layering Traces: https://ink-drawing-for-beginners79370.blue-blogs.com/44914038/the-definitive-guide-to-how-to-draw-with-ink-pens