I think Bitcoin will be held like gold. Maybe even Ether as well.
But I'm personally thinking maybe dogecoin, maybe.... XLM and XRP, as well as Bitcoin cash, Dash, maybe lite coin. Of course USDT type.
I think many people, when the masses start using it more frequently. Will stick to older common coins that can be found at any crypto ATM and have the lowest fees and fastest transaction time.
Anyone disagree or have anything to add?
I think the crypto that will be the most commony used in the future is bitcoin because it is the safest cannot be hacked. Bitcoin has a bitcoin lightning network where the fees are low and high speed transaction, so people will love to use it. I believe that in the future bitcoin will be the main currency of the world.