As advised I am trying to learn the basics of crypto first.
Most of the suggestions mention investing in top ranked coins. My question is, does it always work? As far as I understand, the market is vulnerable and affects almost all the coins from top to bottom. How then you determine which ones would stay ?
Not always (just the same as other coins), but by investing in the top coins at least they have a reputation and a solid team (A solid work team is not created just like that, but it's the result of strong leadership, wise and hard work) in its development, besides, the top coins also often benefit users, because he's stronger and resistant to the adverse changes that are usually carried out by manipulators.