Bitcoin, Litecoin, ETH, Ripple, Titan coin, Tether coin etc are very good for investing. Especially investing in Bitcoin, eth, Titan, Tether coin can really be profitable. I think the coins are very good. These coins are very popular and in demand. The higher the demand for the coin, the higher the price of the coin. So suitable for BTC, LTC, XRP, ETH, Titan, Tether coin invest.