As we have a halving year ahead, Bitcoin will be the best investment. Moreover, the best currency to hold Bitcoin is the most profitable in Bitcoin compared to all other altcoins. Most of them turn out to be scams but Bitcoin will never be a scam and it is the most profitable and risk free. Risky investment is altcoin which can lose you money, but if you invest in bitcoin it will give you profit. However Bitcoin is best for long term investment, but altcoin investment is always risky so it is best and wise to invest in Bitcoin for next bull season.