Interesting choice of coins you have here, ethereum and ethereum classic, binance coin and litecoin, why didn't you add bitcoin, dash and monero? These coins are on top for a long time, and some of them will stay there for sure, while some will be replaced by new coins with better development.
My choice for long term holding are top coins too, at least some of them, but people should pay attention on link, tezos, atom and and some other younger coins with great teams and ideas, their development is at high level so I think we can expect a lot from these projects.
Bitcoin does not need mentioning to me. If you are into crypto and NOT into Bitcoin,,, then you have made the ultimate mistake. Because if Bitcoin dies, all crypto dies.
I would definitely add Monero, and not Binance coin which is among all of them the most useless outside of Binance. That is truly like buying a company stock in a crypto exchange!