Irrespective of the project we may have in mind to go for, we should always be ready for an alternative to it, in case of when the unexpected should happen,we can at least have something to fall back on, the project or coin may not fail, but when we miscalculate the way we should go about it and experience loss, we may not be able to afford having nothing as backup to help us recover from the investment we made on any crypto project.
The initial point is how we analyze a project well. Although sometimes, even after in-depth analysis, not all projects can be successful, as a result of those that turn out to be scam/failed projects, or that end up being shit coins. And what is happening now, moreover, is the emergence of hype projects which in fact can be very profitable and on the contrary can be very detrimental. In this case, you have to be extra careful and timely when you want to sell coins from such a project. because after all, if you are even a little late, you will end up with a big loss.
On the other hand, if you really want to invest for the long term, it would be much wiser to choose top coins. Top coins that are at least really solid and have a high market cap, although this is not guaranteed, at least this can be attempted. Moreover, choose coins that don't have any problems with the SEC, because this can also be dangerous.
The most appropriate is Bitcoin and Ethereum, both of which have the potential to be worth it in the long term.