What we have to understand is that it is not all cryptocurrencies that will be profitable even for long-term or short-term purposes because they do not even have uses in the crypto space, even if I have to mention most cryptocurrency which I believe will be profitable in the future you also have to do your own personal research to know the type that will be suitable for you to invest, if I am to invest in cryptocurrency I will go for sand, ftm, cake, these are potential cryptocurrency you should consider to invest for long-term purposes as it might be profitable.