For alternative investments I prefer to invest in a real-estate. That brings me real income from rental. Currently, there are two income-generating flats, and that's enough for quiet life.
Real estate and use it as a source of income is one of the best alternative to bitcoin. It's a passive income and even you are sleeping, money will just generate to your monthly or depending to the contract term that you will give to the tenants. This is one of my dream, to have my own real estate.