I have been doing my research on which good altcoin to hold, but i also need your opinion on which to hold.
I advise you to invest in Etheera (ETA), because in just a few months the price can rise very high (33,000%) and be at position 80 in coinmarketcap, it shows that investing in Etheera (ETA) is very good and have the opportunity if in the future Etheera (ETA) can be in position top 10 coinmarketcap, so the price will definitely increase much higher.
origin : https://coinmarketcap.com/currencies/etheera/#charts