If you are new to this, and are interested in investing in altcoins, then I suggest choosing only popular altcoins, especially ethereum. I think that ethereum is the best altcoin at the moment. If you invest in ethereum, I think the risk can be smaller than other altcoins. However, if you are looking for a slightly cheaper altcoin, then the choice is BNB. I still feel that BNB is a potential altcoin to this day.
However, if you are looking for an altcoin investment, I do not recommend new altcoins. Without experienced people beside you, the risk of choosing a new investment is very risky, and may have a good or bad impact in the long term for you, because this is an important experience for choosing initial investments.