When I have opened up the hyperlink you have inputted into your posts, I have read an article of those cryptocurrencies specifically Altcoins that are good to invest this year 2020. Among the list you have provided, I already have Ethereum which I have already been holding since the day I have got into this type of industry. I still manage to keep on holding as well as acquiring Ethereum despite of the downfalls it have been into because I do believe that it can still rise up not just on popularity but also in terms of price. The other one I have within my sleeve is Ripple (XRP) which I just recently got to engage which is just last year and I can say that it is really a worthy amd potential coin which is good to invest this year 2020 specially if you have seen its price behavior which is going to the positive direction of rising that is a good indication that it will experience improvement this year round. But still, it is up to you on which Altcoins you wish to hold just assure that it is worthy and have a potential because there are lots of existing Altcoins within the market and it is up to you to find the Altcoin that will suit your preference.