Most of the altcoins that are in circulation are actually useless and this came as a result of the huge run of ICOs that came about in 2017. If you look critically you could see that only few altcoins have been able to survive the bear market. Take for instance Binance coin and this is because of the use case of the cryptocurrency on Binance exchange. Invest in altcoins that are used and not just listed on an exchange with no active development going on for the project.