Kon nichi wa!! I saw this forum about Kifu and I wanted to ask about them. I've noticed that most Kifus are 19 by 19 boards, how can I find some that are 9 by 9?

I'm not sure that you will find 9x9 kifu officially printed. The problem is that, outside of Internet go, 9x9 games usually aren't very important and aren't recorded. You have a couple of options. You could take blank kifu and mark the corners of a 9x9 grid inside it, or you could buy standard graph paper and mark the corners of the grid and hoshi with a heavy line so that it's visible. The graph paper generator might be useful for this purpose, or you could use a standard pad of quarter-inch grid paper.