Safe haven does not seem to be the right diction, because of the extreme market movements, world economy is not good enough. This is a challenge for all of us, train mentally and confident in trading and investing. The key is you have a strategy and do an independent analysis, don't panic, don't FOMO.
I prefer to hold BTC over altcoin. I avoid the new altcoin because the risk is higher. The price of BTC moves to the extreme, let alone the decline on single day last week which made me unsteady but I chose to hold on.