No matter how promising an altcoins can be , bear in mind that the owners has his own reason for creating them which might not be made known on the white paper. If it is not bitcoins , stay away from shit coins with hundreds of empty promises.
There is Bitcoin which stands alone unique with the least amount of risk. there are altcoins that stands on their own part with some good ones as well as some bad ones. because of how many they are, it might be a bit defficult to know which can stand strong for the long term but that does not still make them completlely worthly. the creators of those altcoin though usually model these coin from bitcoin do not always have negative alterior motive. some want to see their coin doing as bitcoin is doing and we have seen those likes that have remained relevant even after a long period of time. an example is the etherium. meme coin on it own end stands as the most risky one because for the most part, the creators of such coin just bring them into the market and when they have achieved what they are looking for, they just dumpt it, take there profit and forget about how there investors are fairing.
The exposure to risk takes the form of bitcoin being the least risky altcoins being more risky and meme coin almost looking like gambling because they are under the category of pump and dump coins. for safety sake, it is advisable to stick with bitcoin so you are at least certain that your investment is secured and that there is no reason to panick due to volatility.