That's a huge number to invest in. With $ 60k you can become a great investor. If you are not experienced in investing in altcoins then I think you should choose NEO or BTC. There are 2 altcoins that are easy to guess their price through its cycle. I think you should wait for the price of BTC or NEO to drop sharply, then buy low and sell high. That is my short-term investment strategy and I hope you will succeed in investing.