Exchange coins
are one of the safest bets if you really do not know in which cryptocurrencies you would like to invest in. This is thanks to the fact that these coins are simply shares of the exchange so the bigger the interest in trading cryptos (volume) the more valuable these coins get. This means that as soon as there will be next crypto bull run, exchange coins will go up almost certainly (as long as these exchanges are being used) while some of the other cryptocurrencies do not have to if they are not unique or are just useless ( and there is lot of them).
In these charts you can see how the biggest exchange coins performed during the last bull run. Both started at approx. $1 and went to over $20! You can see that KCS dropped back to the initial $1 price while the BNB dropped only by 50%.
The reason why BNB coin held its price so well is that it has 100 times higher volume than KCS. This actually makes BNB one of the more stable coins because most of the other coins went down by 70+ % in the bear market.
I am not saying that these coins ar the best pick for the highest gains because there are definitely many cryptocurrencies with much bigger potential but are a safer bet if you are not certain in which cryptos you would like to invest in but still be somehow engaged in this crypto world. Exchanges will be used every time all the time so buying them should be pretty safe investment.