I am very scared of buying any altcoins aside Eth and Btc in 2020. But there are some coins that I am keeping a steady observation on, like BAT for instance and some other new projects coming up
And right now some altcoins are overperformed ethereum. I agree about the bitcoin as the main consideration but i will not put the rest into the ethereum. When some people are still considering altcoins as shitcoins but others who were buying it at the bottom price has already made a decent profit. Even the biggest scam coin like BSV gets more than 100% increase in a day and i can't even believe it. BAT is a good coin but it's not so good as another coin which was generated from bitcoin today like bitcoin fork coins.
A wild pump is around us.