Is there any exchange where I can place some money on the books, and short sell Bitcoin?

I suggest you invest in XRP, if you want to invest in the long term. because XRP is predicted to touch 10 $ in this year. read this if you want to see it
https://ripplecoinnews.com/ripple-xrp-price-predictionsthis news deserves to be considered to invest in XRP, but in the ripple market has not shown a positive movement, I still think more deeply to invest in ripple