Always make a major investment in bitcoin. I have done this since a long time ago and it has been proven more clearly when the market movements are rising at this time rather than the altcoin, the risk is also quite large, I prefer bitcoin to invest.but indeed it all depends on yourself in choosing it
Bitcoin is certainly the first choice, besides bitcoin, of course we have to dare to buy coins that have the chance to skyrocket like Litecoin (August will be halving) so we can get big profits.