I closely keep my eyes on precious metals market as well. One guy I've been following for years is Stewart Thompson. Why? Because he seems to get his calls right quite often - actually most of the time. For some time he's been covering cryptos too.
Here is today's freebie from Stewart. He makes an interesting comparison between Bitcoin and gold with their possible corrections to come. Check if you will.
http://www.321gold.com/editorials/thomson_s/thomson_s_090517.html