I say YES for quality ALTs with working teams and good vision. I think Cardano, Stellar are a couple of good ones!
What do you think?
In addition, I think you need to hold for a couple of years!
Holding will work if you know the facts and trends of your invested fields compared to what's happening right now. that may be hard to read and scratch against each other, but you could tell more closely if your chosen coins have a some track record in their existence. You have nothing to fear if they're strong.