What I think our long term investment will put is on a very stable coins like Bitcoin, Ethereum, Iota, Monero or Bitcoin Cash. They will stay long ang grow as the adoption of blockchain and Cryptocurrency will flourish worldwide.
Besides, I believe that there are many potential coins in altcoin that are truly valuable and have the potential in the future to make a profit and the best for a long period of time bitcash is a neo litecoin xrp eos xlm trx
I believe this coin is really valuable.