As I have said before, it is difficult to trust some altcoins, but I think that the best option to keep and be clear about is BTC because it is the only asset or currency that is worth it, in which case I think the other good option Be it ETH, ETH is considered the second best currency, in other tokens it is different, because the other tokens depend on the movements in the market made by the owners of the project and what they particularly do is try to find investors so that they can sponsor their project and this is something difficult to find, in 2017 it was very difficult and yet some strong communities were built, now the process is stronger.
Of course, ETH is considered the second-best currency right now. Because it actually has a group of active developers instead of BTC which is forever stagnant. Moreover, ETH has the upcoming PoS rollout which might be the biggest update yet in the crypto currency. I said ETH is at the best for long term hold in the future right now.