mediocre time to get into anything for short/medium term. BTC touched an all time high so it's either going to push quite a bit or have a bit of a drawback. i suppose its not crazy to think if it does draw back to 55-58k its a good time to buy in for a hopefully 80k-100k end of bull run selloff. same applies more or less for ETH, but gains there look a bit less impressive.
as tol alt coins, good luck no one knows what shiba or any of that other junk will do.