It seems to me that in today's market conditions, it is best to buy Ethereum and BNB. Binance coin is very popular at the moment, I think it will see good growth in the near future.
I was worried about the duration of his/her investment (long term or short term) until I saw your comment then I realised that these are really good good. Whichever duration you choose, you won't really go flat because both coins have strong developmental structure and active team which remain the strongest stakeholders in cryptocurrency market
Undoubtedly I had very great confidence in the prospects of Ethereum and therefore this coin is the leader in my portfolio, but also until recently it turned out to be very good to earn with BNB. But today, Ethereum is improving its position in the cryptocurrency market after a recent fall due to fraudulent ico companies. But I am sure that BNB has risen in price due to IEO, but no one will guarantee that these projects will have good prospects in the future. Perhaps BNB will have to go the same thorny path as Ethereum.