A lot of great coins are in accumulation and around all time low now. For example: Nano, Nebl, Link, Blz.
There are so many altcoins now available in the market. Among those we have to select the right coins which will gives more profits in future. I would suggest ETH is the best to invest. The second strongest coin after bitcoin in the crypto market is Ethereum. The price of ETH is low now buy now and hold it for long time the profit will more than you expected.